diff --git a/domain-server/src/DomainServer.cpp b/domain-server/src/DomainServer.cpp
index 744d16b58e..7cf3bdd056 100644
--- a/domain-server/src/DomainServer.cpp
+++ b/domain-server/src/DomainServer.cpp
@@ -417,8 +417,8 @@ int DomainServer::civetwebRequestHandler(struct mg_connection *connection) {
                     mg_printf(connection, "%s", RESPONSE_200);
 
                     // we have a valid UUID and node - kill the node that has this assignment
-                    NodeList::getInstance()->killNodeWithUUID(deleteUUID);
-
+                    QMetaObject::invokeMethod(NodeList::getInstance(), "killNodeWithUUID", Q_ARG(const QUuid&, deleteUUID));
+                    
                     // successfully processed request
                     return 1;
                 }
diff --git a/interface/src/Application.cpp b/interface/src/Application.cpp
index cb60116b37..d7c7f103db 100644
--- a/interface/src/Application.cpp
+++ b/interface/src/Application.cpp
@@ -1432,8 +1432,10 @@ void Application::terminate() {
     _voxelHideShowThread.terminate();
     _voxelEditSender.terminate();
     _particleEditSender.terminate();
-    _persistThread->terminate();
-    _persistThread = NULL;
+    if (_persistThread) {
+        _persistThread->terminate();
+        _persistThread = NULL;
+    }
 }
 
 static Avatar* processAvatarMessageHeader(unsigned char*& packetData, size_t& dataBytes) {
@@ -2276,6 +2278,7 @@ void Application::updateMouseVoxels(float deltaTime, glm::vec3& mouseRayOrigin,
     }
 }
 
+
 void Application::updateHandAndTouch(float deltaTime) {
     bool showWarnings = Menu::getInstance()->isOptionChecked(MenuOption::PipelineWarnings);
     PerformanceWarning warn(showWarnings, "Application::updateHandAndTouch()");
@@ -2319,7 +2322,9 @@ void Application::updateThreads(float deltaTime) {
         _voxelHideShowThread.threadRoutine();
         _voxelEditSender.threadRoutine();
         _particleEditSender.threadRoutine();
-        _persistThread->threadRoutine();
+        if (_persistThread) {
+            _persistThread->threadRoutine();
+        }
     }
 }
 
@@ -4395,10 +4400,13 @@ void Application::updateLocalOctreeCache(bool firstTime) {
 
         QString localVoxelCacheFileName = getLocalVoxelCacheFileName();
         const int LOCAL_CACHE_PERSIST_INTERVAL = 1000 * 10; // every 10 seconds
-        _persistThread = new OctreePersistThread(_voxels.getTree(),
-                                        localVoxelCacheFileName.toLocal8Bit().constData(),LOCAL_CACHE_PERSIST_INTERVAL);
 
-        qDebug() << "updateLocalOctreeCache()... localVoxelCacheFileName=" << localVoxelCacheFileName;
+        if (!Menu::getInstance()->isOptionChecked(MenuOption::DisableLocalVoxelCache)) {
+            _persistThread = new OctreePersistThread(_voxels.getTree(),
+                                            localVoxelCacheFileName.toLocal8Bit().constData(),LOCAL_CACHE_PERSIST_INTERVAL);
+
+            qDebug() << "updateLocalOctreeCache()... localVoxelCacheFileName=" << localVoxelCacheFileName;
+        }
 
         if (_persistThread) {
             _voxels.beginLoadingLocalVoxelCache(); // while local voxels are importing, don't do individual node VBO updates
diff --git a/interface/src/Menu.cpp b/interface/src/Menu.cpp
index 68d82efe1d..8989906b99 100644
--- a/interface/src/Menu.cpp
+++ b/interface/src/Menu.cpp
@@ -37,18 +37,18 @@ Menu* Menu::_instance = NULL;
 
 Menu* Menu::getInstance() {
     static QMutex menuInstanceMutex;
-    
+
     // lock the menu instance mutex to make sure we don't race and create two menus and crash
     menuInstanceMutex.lock();
-    
+
     if (!_instance) {
         qDebug("First call to Menu::getInstance() - initing menu.");
-        
+
         _instance = new Menu();
     }
-    
+
     menuInstanceMutex.unlock();
-        
+
     return _instance;
 }
 
@@ -72,9 +72,9 @@ Menu::Menu() :
     _maxVoxelPacketsPerSecond(DEFAULT_MAX_VOXEL_PPS)
 {
     Application *appInstance = Application::getInstance();
-    
+
     QMenu* fileMenu = addMenu("File");
-    
+
 #ifdef Q_OS_MAC
     addActionToQMenuAndActionHash(fileMenu,
                                   MenuOption::AboutApp,
@@ -83,7 +83,7 @@ Menu::Menu() :
                                   SLOT(aboutApp()),
                                   QAction::AboutRole);
 #endif
-    
+
     (addActionToQMenuAndActionHash(fileMenu,
                                    MenuOption::Login,
                                    0,
@@ -97,7 +97,7 @@ Menu::Menu() :
     addDisabledActionAndSeparator(fileMenu, "Voxels");
     addActionToQMenuAndActionHash(fileMenu, MenuOption::ExportVoxels, Qt::CTRL | Qt::Key_E, appInstance, SLOT(exportVoxels()));
     addActionToQMenuAndActionHash(fileMenu, MenuOption::ImportVoxels, Qt::CTRL | Qt::Key_I, appInstance, SLOT(importVoxels()));
-    
+
     addDisabledActionAndSeparator(fileMenu, "Go");
     addActionToQMenuAndActionHash(fileMenu,
                                   MenuOption::GoHome,
@@ -120,45 +120,45 @@ Menu::Menu() :
                                   this,
                                   SLOT(goToUser()));
 
-    
+
     addDisabledActionAndSeparator(fileMenu, "Settings");
     addActionToQMenuAndActionHash(fileMenu, MenuOption::SettingsImport, 0, this, SLOT(importSettings()));
     addActionToQMenuAndActionHash(fileMenu, MenuOption::SettingsExport, 0, this, SLOT(exportSettings()));
-    
+
     addDisabledActionAndSeparator(fileMenu, "Devices");
     addActionToQMenuAndActionHash(fileMenu, MenuOption::Pair, 0, PairingHandler::getInstance(), SLOT(sendPairRequest()));
     addCheckableActionToQMenuAndActionHash(fileMenu, MenuOption::TransmitterDrive, 0, true);
-    
+
     addActionToQMenuAndActionHash(fileMenu,
                                   MenuOption::Quit,
                                   Qt::CTRL | Qt::Key_Q,
                                   appInstance,
                                   SLOT(quit()),
                                   QAction::QuitRole);
-                                  
-    
+
+
     QMenu* editMenu = addMenu("Edit");
-    
+
     addActionToQMenuAndActionHash(editMenu,
                                   MenuOption::Preferences,
                                   Qt::CTRL | Qt::Key_Comma,
                                   this,
                                   SLOT(editPreferences()),
                                   QAction::PreferencesRole);
-    
+
     addDisabledActionAndSeparator(editMenu, "Voxels");
-    
+
     addActionToQMenuAndActionHash(editMenu, MenuOption::CutVoxels, Qt::CTRL | Qt::Key_X, appInstance, SLOT(cutVoxels()));
     addActionToQMenuAndActionHash(editMenu, MenuOption::CopyVoxels, Qt::CTRL | Qt::Key_C, appInstance, SLOT(copyVoxels()));
     addActionToQMenuAndActionHash(editMenu, MenuOption::PasteVoxels, Qt::CTRL | Qt::Key_V, appInstance, SLOT(pasteVoxels()));
     addActionToQMenuAndActionHash(editMenu, MenuOption::NudgeVoxels, Qt::CTRL | Qt::Key_N, appInstance, SLOT(nudgeVoxels()));
-    
+
     #ifdef __APPLE__
         addActionToQMenuAndActionHash(editMenu, MenuOption::DeleteVoxels, Qt::Key_Backspace, appInstance, SLOT(deleteVoxels()));
     #else
         addActionToQMenuAndActionHash(editMenu, MenuOption::DeleteVoxels, Qt::Key_Delete, appInstance, SLOT(deleteVoxels()));
     #endif
-    
+
     addDisabledActionAndSeparator(editMenu, "Physics");
     addCheckableActionToQMenuAndActionHash(editMenu, MenuOption::Gravity, Qt::SHIFT | Qt::Key_G, true);
     addCheckableActionToQMenuAndActionHash(editMenu,
@@ -167,47 +167,47 @@ Menu::Menu() :
                                            true,
                                            appInstance->getAvatar(),
                                            SLOT(setWantCollisionsOn(bool)));
-    
+
     QMenu* toolsMenu = addMenu("Tools");
-    
+
     _voxelModeActionsGroup = new QActionGroup(this);
     _voxelModeActionsGroup->setExclusive(false);
-    
+
     QAction* addVoxelMode = addCheckableActionToQMenuAndActionHash(toolsMenu, MenuOption::VoxelAddMode, Qt::Key_V);
     _voxelModeActionsGroup->addAction(addVoxelMode);
-    
+
     QAction* deleteVoxelMode = addCheckableActionToQMenuAndActionHash(toolsMenu, MenuOption::VoxelDeleteMode, Qt::Key_R);
     _voxelModeActionsGroup->addAction(deleteVoxelMode);
-    
+
     QAction* colorVoxelMode = addCheckableActionToQMenuAndActionHash(toolsMenu, MenuOption::VoxelColorMode, Qt::Key_B);
     _voxelModeActionsGroup->addAction(colorVoxelMode);
-    
+
     QAction* selectVoxelMode = addCheckableActionToQMenuAndActionHash(toolsMenu, MenuOption::VoxelSelectMode, Qt::Key_O);
     _voxelModeActionsGroup->addAction(selectVoxelMode);
-    
+
     QAction* getColorMode = addCheckableActionToQMenuAndActionHash(toolsMenu, MenuOption::VoxelGetColorMode, Qt::Key_G);
     _voxelModeActionsGroup->addAction(getColorMode);
-    
+
     addCheckableActionToQMenuAndActionHash(toolsMenu, MenuOption::ClickToFly);
-    
-    
+
+
     // connect each of the voxel mode actions to the updateVoxelModeActionsSlot
     foreach (QAction* action, _voxelModeActionsGroup->actions()) {
         connect(action, SIGNAL(triggered()), this, SLOT(updateVoxelModeActions()));
     }
-    
+
     QAction* voxelPaintColor = addActionToQMenuAndActionHash(toolsMenu,
                                                              MenuOption::VoxelPaintColor,
                                                              Qt::META | Qt::Key_C,
                                                              this,
                                                              SLOT(chooseVoxelPaintColor()));
-    
+
     Application::getInstance()->getSwatch()->setAction(voxelPaintColor);
-    
+
     QColor paintColor(128, 128, 128);
     voxelPaintColor->setData(paintColor);
     voxelPaintColor->setIcon(Swatch::createIcon(paintColor));
-    
+
     addActionToQMenuAndActionHash(toolsMenu,
                                   MenuOption::DecreaseVoxelSize,
                                   QKeySequence::ZoomOut,
@@ -220,9 +220,9 @@ Menu::Menu() :
                                   SLOT(increaseVoxelSize()));
     addActionToQMenuAndActionHash(toolsMenu, MenuOption::ResetSwatchColors, 0, this, SLOT(resetSwatchColors()));
 
-    
+
     QMenu* viewMenu = addMenu("View");
-    
+
     addCheckableActionToQMenuAndActionHash(viewMenu,
                                            MenuOption::Fullscreen,
                                            Qt::CTRL | Qt::META | Qt::Key_F,
@@ -233,10 +233,10 @@ Menu::Menu() :
     addCheckableActionToQMenuAndActionHash(viewMenu, MenuOption::Mirror, Qt::SHIFT | Qt::Key_H);
     addCheckableActionToQMenuAndActionHash(viewMenu, MenuOption::FullscreenMirror, Qt::Key_H);
     addCheckableActionToQMenuAndActionHash(viewMenu, MenuOption::Enable3DTVMode, 0, false);
-    
-    
+
+
     QMenu* avatarSizeMenu = viewMenu->addMenu("Avatar Size");
-    
+
     addActionToQMenuAndActionHash(avatarSizeMenu,
                                   MenuOption::IncreaseAvatarSize,
                                   Qt::Key_Plus,
@@ -263,8 +263,8 @@ Menu::Menu() :
                                            true);
     addCheckableActionToQMenuAndActionHash(viewMenu, MenuOption::MoveWithLean, 0, false);
     addCheckableActionToQMenuAndActionHash(viewMenu, MenuOption::HeadMouse, 0, false);
-    
-    
+
+
     addDisabledActionAndSeparator(viewMenu, "Stats");
     addCheckableActionToQMenuAndActionHash(viewMenu, MenuOption::Stats, Qt::Key_Slash);
     addActionToQMenuAndActionHash(viewMenu, MenuOption::Log, Qt::CTRL | Qt::Key_L, appInstance, SLOT(toggleLogDialog()));
@@ -272,7 +272,7 @@ Menu::Menu() :
     addCheckableActionToQMenuAndActionHash(viewMenu, MenuOption::Bandwidth, 0, true);
     addActionToQMenuAndActionHash(viewMenu, MenuOption::BandwidthDetails, 0, this, SLOT(bandwidthDetails()));
     addActionToQMenuAndActionHash(viewMenu, MenuOption::VoxelStats, 0, this, SLOT(voxelStatsDetails()));
-     
+
     QMenu* developerMenu = addMenu("Developer");
 
     QMenu* renderOptionsMenu = developerMenu->addMenu("Rendering Options");
@@ -284,11 +284,11 @@ Menu::Menu() :
                                   0,
                                   appInstance->getGlowEffect(),
                                   SLOT(cycleRenderMode()));
-    
+
     addCheckableActionToQMenuAndActionHash(renderOptionsMenu, MenuOption::ParticleCloud, 0, false);
     addCheckableActionToQMenuAndActionHash(renderOptionsMenu, MenuOption::Shadows, 0, false);
     addCheckableActionToQMenuAndActionHash(renderOptionsMenu, MenuOption::Metavoxels, 0, false);
-    
+
 
     QMenu* voxelOptionsMenu = developerMenu->addMenu("Voxel Options");
 
@@ -301,19 +301,20 @@ Menu::Menu() :
     addCheckableActionToQMenuAndActionHash(voxelOptionsMenu, MenuOption::DontRenderVoxels);
     addCheckableActionToQMenuAndActionHash(voxelOptionsMenu, MenuOption::DontCallOpenGLForVoxels);
 
-    _useVoxelShader = addCheckableActionToQMenuAndActionHash(voxelOptionsMenu, MenuOption::UseVoxelShader, 0, 
+    _useVoxelShader = addCheckableActionToQMenuAndActionHash(voxelOptionsMenu, MenuOption::UseVoxelShader, 0,
                                            false, appInstance->getVoxels(), SLOT(setUseVoxelShader(bool)));
 
-    addCheckableActionToQMenuAndActionHash(voxelOptionsMenu, MenuOption::VoxelsAsPoints, 0, 
+    addCheckableActionToQMenuAndActionHash(voxelOptionsMenu, MenuOption::VoxelsAsPoints, 0,
                                            false, appInstance->getVoxels(), SLOT(setVoxelsAsPoints(bool)));
 
     addCheckableActionToQMenuAndActionHash(voxelOptionsMenu, MenuOption::VoxelTextures);
     addCheckableActionToQMenuAndActionHash(voxelOptionsMenu, MenuOption::AmbientOcclusion);
     addCheckableActionToQMenuAndActionHash(voxelOptionsMenu, MenuOption::DontFadeOnVoxelServerChanges);
     addActionToQMenuAndActionHash(voxelOptionsMenu, MenuOption::LodTools, Qt::SHIFT | Qt::Key_L, this, SLOT(lodTools()));
+    addCheckableActionToQMenuAndActionHash(voxelOptionsMenu, MenuOption::DisableLocalVoxelCache);
 
     QMenu* voxelProtoOptionsMenu = voxelOptionsMenu->addMenu("Voxel Server Protocol Options");
-    
+
     addCheckableActionToQMenuAndActionHash(voxelProtoOptionsMenu, MenuOption::DisableColorVoxels);
     addCheckableActionToQMenuAndActionHash(voxelProtoOptionsMenu, MenuOption::DisableLowRes);
     addCheckableActionToQMenuAndActionHash(voxelProtoOptionsMenu, MenuOption::DisableDeltaSending);
@@ -322,16 +323,16 @@ Menu::Menu() :
     addCheckableActionToQMenuAndActionHash(voxelProtoOptionsMenu, MenuOption::DestructiveAddVoxel);
 
     QMenu* avatarOptionsMenu = developerMenu->addMenu("Avatar Options");
-    
+
     addCheckableActionToQMenuAndActionHash(avatarOptionsMenu, MenuOption::Avatars, 0, true);
     addCheckableActionToQMenuAndActionHash(avatarOptionsMenu, MenuOption::CollisionProxies);
-    
+
     addActionToQMenuAndActionHash(avatarOptionsMenu,
                                   MenuOption::FaceMode,
                                   0,
                                   &appInstance->getAvatar()->getHead().getVideoFace(),
                                   SLOT(cycleRenderMode()));
-    
+
     addCheckableActionToQMenuAndActionHash(avatarOptionsMenu, MenuOption::LookAtVectors, 0, true);
     addCheckableActionToQMenuAndActionHash(avatarOptionsMenu, MenuOption::LookAtIndicator, 0, true);
     addCheckableActionToQMenuAndActionHash(avatarOptionsMenu,
@@ -378,12 +379,12 @@ Menu::Menu() :
     addCheckableActionToQMenuAndActionHash(handOptionsMenu, MenuOption::SimulateLeapHand);
     addCheckableActionToQMenuAndActionHash(handOptionsMenu, MenuOption::DisplayLeapHands, 0, true);
     addCheckableActionToQMenuAndActionHash(handOptionsMenu, MenuOption::LeapDrive, 0, false);
-    addCheckableActionToQMenuAndActionHash(handOptionsMenu, MenuOption::DisplayHandTargets, 0, false);    
+    addCheckableActionToQMenuAndActionHash(handOptionsMenu, MenuOption::DisplayHandTargets, 0, false);
     addCheckableActionToQMenuAndActionHash(handOptionsMenu, MenuOption::BallFromHand, 0, false);
     addCheckableActionToQMenuAndActionHash(handOptionsMenu, MenuOption::VoxelDrumming, 0, false);
     addCheckableActionToQMenuAndActionHash(handOptionsMenu, MenuOption::PlaySlaps, 0, false);
-    
- 
+
+
 
     QMenu* trackingOptionsMenu = developerMenu->addMenu("Tracking Options");
     addCheckableActionToQMenuAndActionHash(trackingOptionsMenu,
@@ -402,7 +403,6 @@ Menu::Menu() :
                                            SLOT(setLEDTrackingOn(bool)));
 #endif //def HAVE_LIBVPX
 
-    
     addDisabledActionAndSeparator(developerMenu, "Testing");
 
     QMenu* timingMenu = developerMenu->addMenu("Timing and Statistics Tools");
@@ -414,7 +414,7 @@ Menu::Menu() :
                                   Qt::SHIFT | Qt::Key_S,
                                   appInstance->getVoxels(),
                                   SLOT(collectStatsForTreesAndVBOs()));
-    
+
     QMenu* frustumMenu = developerMenu->addMenu("View Frustum Debugging Tools");
     addCheckableActionToQMenuAndActionHash(frustumMenu, MenuOption::DisplayFrustum, Qt::SHIFT | Qt::Key_F);
     addActionToQMenuAndActionHash(frustumMenu,
@@ -423,8 +423,8 @@ Menu::Menu() :
                                   this,
                                   SLOT(cycleFrustumRenderMode()));
     updateFrustumRenderModeAction();
-    
-    
+
+
     QMenu* renderDebugMenu = developerMenu->addMenu("Render Debugging Tools");
     addCheckableActionToQMenuAndActionHash(renderDebugMenu, MenuOption::PipelineWarnings, Qt::CTRL | Qt::SHIFT | Qt::Key_P);
     addCheckableActionToQMenuAndActionHash(renderDebugMenu, MenuOption::SuppressShortTimings, Qt::CTRL | Qt::SHIFT | Qt::Key_S);
@@ -437,48 +437,48 @@ Menu::Menu() :
                                   Qt::CTRL | Qt::Key_A,
                                   appInstance->getVoxels(),
                                   SLOT(showAllLocalVoxels()));
-    
+
     addActionToQMenuAndActionHash(renderDebugMenu,
                                   MenuOption::KillLocalVoxels,
                                   Qt::CTRL | Qt::Key_K,
                                   appInstance, SLOT(doKillLocalVoxels()));
-    
+
     addActionToQMenuAndActionHash(renderDebugMenu,
                                   MenuOption::RandomizeVoxelColors,
                                   Qt::CTRL | Qt::Key_R,
                                   appInstance->getVoxels(),
                                   SLOT(randomizeVoxelColors()));
-    
+
     addActionToQMenuAndActionHash(renderDebugMenu,
                                   MenuOption::FalseColorRandomly,
                                   0,
                                   appInstance->getVoxels(),
                                   SLOT(falseColorizeRandom()));
-    
+
     addActionToQMenuAndActionHash(renderDebugMenu,
                                   MenuOption::FalseColorEveryOtherVoxel,
                                   0,
                                   appInstance->getVoxels(),
                                   SLOT(falseColorizeRandomEveryOther()));
-    
+
     addActionToQMenuAndActionHash(renderDebugMenu,
                                   MenuOption::FalseColorByDistance,
                                   0,
                                   appInstance->getVoxels(),
                                   SLOT(falseColorizeDistanceFromView()));
-    
+
     addActionToQMenuAndActionHash(renderDebugMenu,
                                   MenuOption::FalseColorOutOfView,
                                   0,
                                   appInstance->getVoxels(),
                                   SLOT(falseColorizeInView()));
-    
+
     addActionToQMenuAndActionHash(renderDebugMenu,
                                   MenuOption::FalseColorBySource,
                                   0,
                                   appInstance->getVoxels(),
                                   SLOT(falseColorizeBySource()));
-    
+
     addActionToQMenuAndActionHash(renderDebugMenu,
                                   MenuOption::ShowTrueColors,
                                   Qt::CTRL | Qt::Key_T,
@@ -491,32 +491,32 @@ Menu::Menu() :
                                   0,
                                   appInstance->getVoxels(),
                                   SLOT(falseColorizeOccluded()));
-    
+
     addActionToQMenuAndActionHash(renderDebugMenu,
                                   MenuOption::FalseColorOccludedV2,
                                   0,
                                   appInstance->getVoxels(),
                                   SLOT(falseColorizeOccludedV2()));
-    
+
     addCheckableActionToQMenuAndActionHash(renderDebugMenu, MenuOption::CoverageMap, Qt::SHIFT | Qt::CTRL | Qt::Key_O);
     addCheckableActionToQMenuAndActionHash(renderDebugMenu, MenuOption::CoverageMapV2, Qt::SHIFT | Qt::CTRL | Qt::Key_P);
-                                           
+
     QMenu* audioDebugMenu = developerMenu->addMenu("Audio Debugging Tools");
     addCheckableActionToQMenuAndActionHash(audioDebugMenu, MenuOption::EchoServerAudio);
     addCheckableActionToQMenuAndActionHash(audioDebugMenu, MenuOption::EchoLocalAudio);
 
-    addActionToQMenuAndActionHash(developerMenu, MenuOption::PasteToVoxel, 
-                Qt::CTRL | Qt::SHIFT | Qt::Key_V, 
+    addActionToQMenuAndActionHash(developerMenu, MenuOption::PasteToVoxel,
+                Qt::CTRL | Qt::SHIFT | Qt::Key_V,
                 this,
                 SLOT(pasteToVoxel()));
-                
-    
+
+
 #ifndef Q_OS_MAC
     QMenu* helpMenu = addMenu("Help");
     QAction* helpAction = helpMenu->addAction(MenuOption::AboutApp);
     connect(helpAction, SIGNAL(triggered()), this, SLOT(aboutApp()));
 #endif
-    
+
 }
 
 Menu::~Menu() {
@@ -528,7 +528,7 @@ void Menu::loadSettings(QSettings* settings) {
     if (!settings) {
         settings = Application::getInstance()->getSettings();
     }
-    
+
     _audioJitterBufferSamples = loadSetting(settings, "audioJitterBufferSamples", 0);
     _fieldOfView = loadSetting(settings, "fieldOfView", DEFAULT_FIELD_OF_VIEW_DEGREES);
     _faceshiftEyeDeflection = loadSetting(settings, "faceshiftEyeDeflection", DEFAULT_FACESHIFT_EYE_DEFLECTION);
@@ -536,7 +536,7 @@ void Menu::loadSettings(QSettings* settings) {
     _maxVoxelPacketsPerSecond = loadSetting(settings, "maxVoxelsPPS", DEFAULT_MAX_VOXEL_PPS);
     _voxelSizeScale = loadSetting(settings, "voxelSizeScale", DEFAULT_OCTREE_SIZE_SCALE);
     _boundaryLevelAdjust = loadSetting(settings, "boundaryLevelAdjust", 0);
-    
+
     settings->beginGroup("View Frustum Offset Camera");
     // in case settings is corrupt or missing loadSetting() will check for NaN
     _viewFrustumOffset.yaw = loadSetting(settings, "viewFrustumOffsetYaw", 0.0f);
@@ -545,7 +545,7 @@ void Menu::loadSettings(QSettings* settings) {
     _viewFrustumOffset.distance = loadSetting(settings, "viewFrustumOffsetDistance", 0.0f);
     _viewFrustumOffset.up = loadSetting(settings, "viewFrustumOffsetUp", 0.0f);
     settings->endGroup();
-    
+
     scanMenuBar(&loadAction, settings);
     Application::getInstance()->getAvatar()->loadData(settings);
     Application::getInstance()->getSwatch()->loadData(settings);
@@ -558,7 +558,7 @@ void Menu::saveSettings(QSettings* settings) {
     if (!settings) {
         settings = Application::getInstance()->getSettings();
     }
-    
+
     settings->setValue("audioJitterBufferSamples", _audioJitterBufferSamples);
     settings->setValue("fieldOfView", _fieldOfView);
     settings->setValue("faceshiftEyeDeflection", _faceshiftEyeDeflection);
@@ -573,7 +573,7 @@ void Menu::saveSettings(QSettings* settings) {
     settings->setValue("viewFrustumOffsetDistance", _viewFrustumOffset.distance);
     settings->setValue("viewFrustumOffsetUp", _viewFrustumOffset.up);
     settings->endGroup();
-    
+
     scanMenuBar(&saveAction, settings);
     Application::getInstance()->getAvatar()->saveData(settings);
     Application::getInstance()->getSwatch()->saveData(settings);
@@ -618,7 +618,7 @@ void Menu::saveAction(QSettings* set, QAction* action) {
 
 void Menu::scanMenuBar(settingsAction modifySetting, QSettings* set) {
     QList<QMenu*> menus = this->findChildren<QMenu *>();
-    
+
     for (QList<QMenu *>::const_iterator it = menus.begin(); menus.end() != it; ++it) {
         scanMenu(*it, modifySetting, set);
     }
@@ -626,7 +626,7 @@ void Menu::scanMenuBar(settingsAction modifySetting, QSettings* set) {
 
 void Menu::scanMenu(QMenu* menu, settingsAction modifySetting, QSettings* set) {
     QList<QAction*> actions = menu->actions();
-    
+
     set->beginGroup(menu->title());
     for (QList<QAction *>::const_iterator it = actions.begin(); actions.end() != it; ++it) {
         if ((*it)->menu()) {
@@ -642,48 +642,48 @@ void Menu::scanMenu(QMenu* menu, settingsAction modifySetting, QSettings* set) {
 void Menu::handleViewFrustumOffsetKeyModifier(int key) {
     const float VIEW_FRUSTUM_OFFSET_DELTA = 0.5f;
     const float VIEW_FRUSTUM_OFFSET_UP_DELTA = 0.05f;
-    
+
     switch (key) {
         case Qt::Key_BracketLeft:
             _viewFrustumOffset.yaw -= VIEW_FRUSTUM_OFFSET_DELTA;
             break;
-            
+
         case Qt::Key_BracketRight:
             _viewFrustumOffset.yaw += VIEW_FRUSTUM_OFFSET_DELTA;
             break;
-            
+
         case Qt::Key_BraceLeft:
             _viewFrustumOffset.pitch -= VIEW_FRUSTUM_OFFSET_DELTA;
             break;
-            
+
         case Qt::Key_BraceRight:
             _viewFrustumOffset.pitch += VIEW_FRUSTUM_OFFSET_DELTA;
             break;
-            
+
         case Qt::Key_ParenLeft:
             _viewFrustumOffset.roll -= VIEW_FRUSTUM_OFFSET_DELTA;
             break;
-            
+
         case Qt::Key_ParenRight:
             _viewFrustumOffset.roll += VIEW_FRUSTUM_OFFSET_DELTA;
             break;
-            
+
         case Qt::Key_Less:
             _viewFrustumOffset.distance -= VIEW_FRUSTUM_OFFSET_DELTA;
             break;
-            
+
         case Qt::Key_Greater:
             _viewFrustumOffset.distance += VIEW_FRUSTUM_OFFSET_DELTA;
             break;
-            
+
         case Qt::Key_Comma:
             _viewFrustumOffset.up -= VIEW_FRUSTUM_OFFSET_UP_DELTA;
             break;
-            
+
         case Qt::Key_Period:
             _viewFrustumOffset.up += VIEW_FRUSTUM_OFFSET_UP_DELTA;
             break;
-            
+
         default:
             break;
     }
@@ -701,7 +701,7 @@ QAction* Menu::addActionToQMenuAndActionHash(QMenu* destinationMenu,
                                              const char* member,
                                              QAction::MenuRole role) {
     QAction* action;
-    
+
     if (receiver && member) {
         action = destinationMenu->addAction(actionName, receiver, member, shortcut);
     } else {
@@ -709,9 +709,9 @@ QAction* Menu::addActionToQMenuAndActionHash(QMenu* destinationMenu,
         action->setShortcut(shortcut);
     }
     action->setMenuRole(role);
-    
+
     _actionHash.insert(actionName, action);
-    
+
     return action;
 }
 
@@ -724,7 +724,7 @@ QAction* Menu::addCheckableActionToQMenuAndActionHash(QMenu* destinationMenu,
     QAction* action = addActionToQMenuAndActionHash(destinationMenu, actionName, shortcut, receiver, member);
     action->setCheckable(true);
     action->setChecked(checked);
-    
+
     return action;
 }
 
@@ -761,7 +761,7 @@ void Menu::aboutApp() {
 void sendFakeEnterEvent() {
     QPoint lastCursorPosition = QCursor::pos();
     QGLWidget* glWidget = Application::getInstance()->getGLWidget();
-    
+
     QPoint windowPosition = glWidget->mapFromGlobal(lastCursorPosition);
     QEnterEvent enterEvent = QEnterEvent(windowPosition, windowPosition, lastCursorPosition);
     QCoreApplication::sendEvent(glWidget, &enterEvent);
@@ -778,62 +778,62 @@ void Menu::login() {
     loginDialog.setTextValue(username);
     loginDialog.setWindowFlags(Qt::Sheet);
     loginDialog.resize(loginDialog.parentWidget()->size().width() * DIALOG_RATIO_OF_WINDOW, loginDialog.size().height());
-    
+
     int dialogReturn = loginDialog.exec();
-    
+
     if (dialogReturn == QDialog::Accepted && !loginDialog.textValue().isEmpty() && loginDialog.textValue() != username) {
         // there has been a username change
         // ask for a profile reset with the new username
         Application::getInstance()->resetProfile(loginDialog.textValue());
-  
+
     }
-    
+
     sendFakeEnterEvent();
 }
 
 void Menu::editPreferences() {
     Application* applicationInstance = Application::getInstance();
-    
+
     QDialog dialog(applicationInstance->getWindow());
     dialog.setWindowTitle("Interface Preferences");
     QBoxLayout* layout = new QBoxLayout(QBoxLayout::TopToBottom);
     dialog.setLayout(layout);
-    
+
     QFormLayout* form = new QFormLayout();
     layout->addLayout(form, 1);
-        
+
     QString faceURLString = applicationInstance->getProfile()->getFaceModelURL().toString();
     QLineEdit* faceURLEdit = new QLineEdit(faceURLString);
     faceURLEdit->setMinimumWidth(QLINE_MINIMUM_WIDTH);
     form->addRow("Face URL:", faceURLEdit);
-    
+
     QString skeletonURLString = applicationInstance->getProfile()->getSkeletonModelURL().toString();
     QLineEdit* skeletonURLEdit = new QLineEdit(skeletonURLString);
     skeletonURLEdit->setMinimumWidth(QLINE_MINIMUM_WIDTH);
     form->addRow("Skeleton URL:", skeletonURLEdit);
-    
+
     QSlider* pupilDilation = new QSlider(Qt::Horizontal);
     pupilDilation->setValue(applicationInstance->getAvatar()->getHead().getPupilDilation() * pupilDilation->maximum());
     form->addRow("Pupil Dilation:", pupilDilation);
-    
+
     QSlider* faceshiftEyeDeflection = new QSlider(Qt::Horizontal);
     faceshiftEyeDeflection->setValue(_faceshiftEyeDeflection * faceshiftEyeDeflection->maximum());
     form->addRow("Faceshift Eye Deflection:", faceshiftEyeDeflection);
-    
+
     QSpinBox* fieldOfView = new QSpinBox();
     fieldOfView->setMaximum(180);
     fieldOfView->setMinimum(1);
     fieldOfView->setValue(_fieldOfView);
     form->addRow("Vertical Field of View (Degrees):", fieldOfView);
-    
+
     QDoubleSpinBox* leanScale = new QDoubleSpinBox();
     leanScale->setValue(applicationInstance->getAvatar()->getLeanScale());
     form->addRow("Lean Scale:", leanScale);
-    
+
     QDoubleSpinBox* avatarScale = new QDoubleSpinBox();
     avatarScale->setValue(applicationInstance->getAvatar()->getScale());
     form->addRow("Avatar Scale:", avatarScale);
-    
+
     QSpinBox* audioJitterBufferSamples = new QSpinBox();
     audioJitterBufferSamples->setMaximum(10000);
     audioJitterBufferSamples->setMinimum(-10000);
@@ -859,93 +859,93 @@ void Menu::editPreferences() {
     maxVoxelsPPS->setSingleStep(STEP_MAX_VOXELS_PPS);
     maxVoxelsPPS->setValue(_maxVoxelPacketsPerSecond);
     form->addRow("Maximum Voxels Packets Per Second:", maxVoxelsPPS);
-    
+
     QDialogButtonBox* buttons = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
     dialog.connect(buttons, SIGNAL(accepted()), SLOT(accept()));
     dialog.connect(buttons, SIGNAL(rejected()), SLOT(reject()));
     layout->addWidget(buttons);
-    
+
     int ret = dialog.exec();
     if (ret == QDialog::Accepted) {
         QUrl faceModelURL(faceURLEdit->text());
-        
+
         if (faceModelURL.toString() != faceURLString) {
             // change the faceModelURL in the profile, it will also update this user's BlendFace
             applicationInstance->getProfile()->setFaceModelURL(faceModelURL);
-            
+
             // send the new face mesh URL to the data-server (if we have a client UUID)
             DataServerClient::putValueForKey(DataServerKey::FaceMeshURL,
                                              faceModelURL.toString().toLocal8Bit().constData());
         }
-        
+
         QUrl skeletonModelURL(skeletonURLEdit->text());
-        
+
         if (skeletonModelURL.toString() != skeletonURLString) {
             // change the skeletonModelURL in the profile, it will also update this user's Body
             applicationInstance->getProfile()->setSkeletonModelURL(skeletonModelURL);
-            
+
             // send the new skeleton model URL to the data-server (if we have a client UUID)
             DataServerClient::putValueForKey(DataServerKey::SkeletonURL,
                                              skeletonModelURL.toString().toLocal8Bit().constData());
         }
-                        
+
         applicationInstance->getAvatar()->getHead().setPupilDilation(pupilDilation->value() / (float)pupilDilation->maximum());
-        
+
         _maxVoxels = maxVoxels->value();
         applicationInstance->getVoxels()->setMaxVoxels(_maxVoxels);
 
         _maxVoxelPacketsPerSecond = maxVoxelsPPS->value();
-        
+
         applicationInstance->getAvatar()->setLeanScale(leanScale->value());
         applicationInstance->getAvatar()->setClampedTargetScale(avatarScale->value());
-        
+
         _audioJitterBufferSamples = audioJitterBufferSamples->value();
-        
+
         if (_audioJitterBufferSamples != 0) {
             applicationInstance->getAudio()->setJitterBufferSamples(_audioJitterBufferSamples);
         }
-        
+
         _fieldOfView = fieldOfView->value();
         applicationInstance->resizeGL(applicationInstance->getGLWidget()->width(), applicationInstance->getGLWidget()->height());
-        
+
         _faceshiftEyeDeflection = faceshiftEyeDeflection->value() / (float)faceshiftEyeDeflection->maximum();
     }
-    
+
     sendFakeEnterEvent();
 }
 
 void Menu::goToDomain() {
-    
+
     QString currentDomainHostname = NodeList::getInstance()->getDomainHostname();
-    
+
     if (NodeList::getInstance()->getDomainPort() != DEFAULT_DOMAIN_SERVER_PORT) {
         // add the port to the currentDomainHostname string if it is custom
         currentDomainHostname.append(QString(":%1").arg(NodeList::getInstance()->getDomainPort()));
     }
-    
+
     QInputDialog domainDialog(Application::getInstance()->getWindow());
     domainDialog.setWindowTitle("Go to Domain");
     domainDialog.setLabelText("Domain server:");
     domainDialog.setTextValue(currentDomainHostname);
     domainDialog.setWindowFlags(Qt::Sheet);
     domainDialog.resize(domainDialog.parentWidget()->size().width() * DIALOG_RATIO_OF_WINDOW, domainDialog.size().height());
-    
+
     int dialogReturn = domainDialog.exec();
     if (dialogReturn == QDialog::Accepted) {
         QString newHostname(DEFAULT_DOMAIN_HOSTNAME);
-        
+
         if (domainDialog.textValue().size() > 0) {
             // the user input a new hostname, use that
             newHostname = domainDialog.textValue();
         }
-        
+
         // send a node kill request, indicating to other clients that they should play the "disappeared" effect
         NodeList::getInstance()->sendKillNode(&NODE_TYPE_AVATAR_MIXER, 1);
-        
+
         // give our nodeList the new domain-server hostname
         NodeList::getInstance()->setDomainHostname(domainDialog.textValue());
     }
-    
+
     sendFakeEnterEvent();
 }
 
@@ -954,8 +954,8 @@ void Menu::goToLocation() {
     glm::vec3 avatarPos = myAvatar->getPosition();
     QString currentLocation = QString("%1, %2, %3").arg(QString::number(avatarPos.x),
                                                         QString::number(avatarPos.y), QString::number(avatarPos.z));
-    
-    
+
+
     QInputDialog coordinateDialog(Application::getInstance()->getWindow());
     coordinateDialog.setWindowTitle("Go to Location");
     coordinateDialog.setLabelText("Coordinate as x,y,z:");
@@ -966,10 +966,10 @@ void Menu::goToLocation() {
     int dialogReturn = coordinateDialog.exec();
     if (dialogReturn == QDialog::Accepted && !coordinateDialog.textValue().isEmpty()) {
         QByteArray newCoordinates;
-        
+
         QString delimiterPattern(",");
         QStringList coordinateItems = coordinateDialog.textValue().split(delimiterPattern);
-        
+
         const int NUMBER_OF_COORDINATE_ITEMS = 3;
         const int X_ITEM = 0;
         const int Y_ITEM = 1;
@@ -979,17 +979,17 @@ void Menu::goToLocation() {
             double y = coordinateItems[Y_ITEM].toDouble();
             double z = coordinateItems[Z_ITEM].toDouble();
             glm::vec3 newAvatarPos(x, y, z);
-            
+
             if (newAvatarPos != avatarPos) {
                 // send a node kill request, indicating to other clients that they should play the "disappeared" effect
                 NodeList::getInstance()->sendKillNode(&NODE_TYPE_AVATAR_MIXER, 1);
-                
+
                 qDebug("Going To Location: %f, %f, %f...", x, y, z);
-                myAvatar->setPosition(newAvatarPos); 
+                myAvatar->setPosition(newAvatarPos);
             }
         }
     }
-    
+
     sendFakeEnterEvent();
 }
 
@@ -1001,7 +1001,7 @@ void Menu::goToUser() {
     userDialog.setTextValue(username);
     userDialog.setWindowFlags(Qt::Sheet);
     userDialog.resize(userDialog.parentWidget()->size().width() * DIALOG_RATIO_OF_WINDOW, userDialog.size().height());
-    
+
     int dialogReturn = userDialog.exec();
     if (dialogReturn == QDialog::Accepted && !userDialog.textValue().isEmpty()) {
         // there's a username entered by the user, make a request to the data-server
@@ -1009,7 +1009,7 @@ void Menu::goToUser() {
             QStringList() << DataServerKey::Domain << DataServerKey::Position << DataServerKey::Orientation,
             userDialog.textValue());
     }
-    
+
     sendFakeEnterEvent();
 }
 
@@ -1020,15 +1020,15 @@ void Menu::pasteToVoxel() {
     QString octalCode = "";
     pasteToOctalCodeDialog.setTextValue(octalCode);
     pasteToOctalCodeDialog.setWindowFlags(Qt::Sheet);
-    pasteToOctalCodeDialog.resize(pasteToOctalCodeDialog.parentWidget()->size().width() * DIALOG_RATIO_OF_WINDOW, 
+    pasteToOctalCodeDialog.resize(pasteToOctalCodeDialog.parentWidget()->size().width() * DIALOG_RATIO_OF_WINDOW,
         pasteToOctalCodeDialog.size().height());
-    
+
     int dialogReturn = pasteToOctalCodeDialog.exec();
     if (dialogReturn == QDialog::Accepted && !pasteToOctalCodeDialog.textValue().isEmpty()) {
         // we got an octalCode to paste to...
         QString locationToPaste = pasteToOctalCodeDialog.textValue();
         unsigned char* octalCodeDestination = hexStringToOctalCode(locationToPaste);
-        
+
         // check to see if it was a legit octcode...
         if (locationToPaste == octalCodeToHexString(octalCodeDestination)) {
             Application::getInstance()->pasteVoxelsToOctalCode(octalCodeDestination);
@@ -1036,7 +1036,7 @@ void Menu::pasteToVoxel() {
             qDebug() << "Problem with octcode...";
         }
     }
-    
+
     sendFakeEnterEvent();
 }
 
@@ -1045,7 +1045,7 @@ void Menu::bandwidthDetails() {
         _bandwidthDialog = new BandwidthDialog(Application::getInstance()->getGLWidget(),
                                                Application::getInstance()->getBandwidthMeter());
         connect(_bandwidthDialog, SIGNAL(closed()), SLOT(bandwidthDetailsClosed()));
-        
+
         _bandwidthDialog->show();
     }
     _bandwidthDialog->raise();
@@ -1118,7 +1118,7 @@ void Menu::updateVoxelModeActions() {
 void Menu::chooseVoxelPaintColor() {
     Application* appInstance = Application::getInstance();
     QAction* paintColor = _actionHash.value(MenuOption::VoxelPaintColor);
-    
+
     QColor selected = QColorDialog::getColor(paintColor->data().value<QColor>(),
                                              appInstance->getGLWidget(),
                                              "Voxel Paint Color");
@@ -1126,7 +1126,7 @@ void Menu::chooseVoxelPaintColor() {
         paintColor->setData(selected);
         paintColor->setIcon(Swatch::createIcon(selected));
     }
-    
+
     // restore the main window's active state
     appInstance->getWindow()->activateWindow();
 }
diff --git a/interface/src/Menu.h b/interface/src/Menu.h
index ca45f9000e..a49657e933 100644
--- a/interface/src/Menu.h
+++ b/interface/src/Menu.h
@@ -44,12 +44,12 @@ class Menu : public QMenuBar, public AbstractMenuInterface {
 public:
     static Menu* getInstance();
     ~Menu();
-    
+
     bool isOptionChecked(const QString& menuOption);
     void triggerOption(const QString& menuOption);
     QAction* getActionForOption(const QString& menuOption);
     bool isVoxelModeActionChecked();
-    
+
     float getAudioJitterBufferSamples() const { return _audioJitterBufferSamples; }
     float getFieldOfView() const { return _fieldOfView; }
     float getFaceshiftEyeDeflection() const { return _faceshiftEyeDeflection; }
@@ -61,7 +61,7 @@ public:
     int getMaxVoxels() const { return _maxVoxels; }
     QAction* getUseVoxelShader() const { return _useVoxelShader; }
 
-    
+
     void handleViewFrustumOffsetKeyModifier(int key);
 
     // User Tweakable LOD Items
@@ -69,10 +69,10 @@ public:
     float getVoxelSizeScale() const { return _voxelSizeScale; }
     void setBoundaryLevelAdjust(int boundaryLevelAdjust);
     int getBoundaryLevelAdjust() const { return _boundaryLevelAdjust; }
-    
+
     // User Tweakable PPS from Voxel Server
     int getMaxVoxelPacketsPerSecond() const { return _maxVoxelPacketsPerSecond; }
-    
+
     virtual QMenu* getActiveScriptsMenu() { return _activeScriptsMenu;}
     virtual QAction* addActionToQMenuAndActionHash(QMenu* destinationMenu,
                                            const QString actionName,
@@ -81,7 +81,7 @@ public:
                                            const char* member = NULL,
                                            QAction::MenuRole role = QAction::NoRole);
     virtual void removeAction(QMenu* menu, const QString& actionName);
-    
+
 public slots:
     void bandwidthDetails();
     void voxelStatsDetails();
@@ -92,7 +92,7 @@ public slots:
     void exportSettings();
     void goToUser();
     void pasteToVoxel();
-    
+
 private slots:
     void aboutApp();
     void login();
@@ -107,30 +107,30 @@ private slots:
     void chooseVoxelPaintColor();
     void runTests();
     void resetSwatchColors();
-    
+
 private:
     static Menu* _instance;
-    
+
     Menu();
-    
+
     typedef void(*settingsAction)(QSettings*, QAction*);
     static void loadAction(QSettings* set, QAction* action);
     static void saveAction(QSettings* set, QAction* action);
     void scanMenuBar(settingsAction modifySetting, QSettings* set);
     void scanMenu(QMenu* menu, settingsAction modifySetting, QSettings* set);
-    
+
     /// helper method to have separators with labels that are also compatible with OS X
     void addDisabledActionAndSeparator(QMenu* destinationMenu, const QString& actionName);
-                                           
+
     QAction* addCheckableActionToQMenuAndActionHash(QMenu* destinationMenu,
                                                     const QString actionName,
                                                     const QKeySequence& shortcut = 0,
                                                     const bool checked = false,
                                                     const QObject* receiver = NULL,
                                                     const char* member = NULL);
-    
+
     void updateFrustumRenderModeAction();
-    
+
     QHash<QString, QAction*> _actionHash;
     int _audioJitterBufferSamples; /// number of extra samples to wait before starting audio playback
     BandwidthDialog* _bandwidthDialog;
@@ -171,6 +171,7 @@ namespace MenuOption {
     const QString DestructiveAddVoxel = "Create Voxel is Destructive";
     const QString DisableColorVoxels = "Disable Colored Voxels";
     const QString DisableDeltaSending = "Disable Delta Sending";
+    const QString DisableLocalVoxelCache = "Disable Local Voxel Cache";
     const QString DisableLowRes = "Disable Lower Resolution While Moving";
     const QString DisplayFrustum = "Display Frustum";
     const QString DisplayLeapHands = "Display Leap Hands";
diff --git a/interface/src/avatar/Avatar.cpp b/interface/src/avatar/Avatar.cpp
index b9383474dd..2eb85dbea2 100644
--- a/interface/src/avatar/Avatar.cpp
+++ b/interface/src/avatar/Avatar.cpp
@@ -355,6 +355,55 @@ bool Avatar::findSpherePenetration(const glm::vec3& penetratorCenter, float pene
     return false;
 }
 
+bool Avatar::findSphereCollision(const glm::vec3& sphereCenter, float sphereRadius, CollisionInfo& collision) {
+    // TODO: provide an early exit using bounding sphere of entire avatar
+
+    const HandData* handData = getHandData();
+    if (handData) {
+        int jointIndices[2] = { _skeletonModel.getLeftHandJointIndex(), _skeletonModel.getRightHandJointIndex() };
+        for (int i = 0; i < 2; i++) {
+            const PalmData* palm = handData->getPalm(i);
+            if (palm) {
+                // create a disk collision proxy where the hand is
+                glm::vec3 fingerAxis(0.f);
+                for (size_t f = 0; f < palm->getNumFingers(); ++f) {
+                    const FingerData& finger = (palm->getFingers())[f];
+                    if (finger.isActive()) {
+                        // compute finger axis
+                        glm::vec3 fingerTip = finger.getTipPosition();
+                        glm::vec3 fingerRoot = finger.getRootPosition();
+                        fingerAxis = glm::normalize(fingerTip - fingerRoot);
+                        break;
+                    }
+                }
+                glm::vec3 handPosition;
+                if (i == 0) {
+                    _skeletonModel.getLeftHandPosition(handPosition);
+                }
+                else {
+                    _skeletonModel.getRightHandPosition(handPosition);
+                }
+                glm::vec3 diskCenter = handPosition + HAND_PADDLE_OFFSET * fingerAxis;
+                glm::vec3 diskNormal = palm->getNormal();
+
+                // collide against the disk
+                if (findSphereDiskPenetration(sphereCenter, sphereRadius, 
+                            diskCenter, HAND_PADDLE_RADIUS, diskNormal, collision._penetration)) {
+                    collision._addedVelocity = palm->getVelocity();
+                    return true;
+                }
+            }
+        }
+    }
+
+    if (_skeletonModel.findSpherePenetration(sphereCenter, sphereRadius, collision._penetration)) {
+        collision._penetration /= (float)(TREE_SCALE);
+        collision._addedVelocity = getVelocity();
+        return true;
+    }
+    return false;
+}
+
 int Avatar::parseData(unsigned char* sourceBuffer, int numBytes) {
     // change in position implies movement
     glm::vec3 oldPosition = _position;
diff --git a/interface/src/avatar/Avatar.h b/interface/src/avatar/Avatar.h
index da93ff6761..7bbcf63cab 100755
--- a/interface/src/avatar/Avatar.h
+++ b/interface/src/avatar/Avatar.h
@@ -167,6 +167,13 @@ public:
     bool findSpherePenetration(const glm::vec3& penetratorCenter, float penetratorRadius,
         glm::vec3& penetration, int skeletonSkipIndex = -1) const;
 
+    /// Checks for collision between the a sphere and the avatar.
+    /// \param collisionCenter the center of the penetration test sphere
+    /// \param collisionRadius the radius of the penetration test sphere
+    /// \param collision[out] the details of the collision point
+    /// \return whether or not the sphere collided
+    virtual bool findSphereCollision(const glm::vec3& sphereCenter, float sphereRadius, CollisionInfo& collision);
+
     virtual int parseData(unsigned char* sourceBuffer, int numBytes);
 
     static void renderJointConnectingCone(glm::vec3 position1, glm::vec3 position2, float radius1, float radius2);
diff --git a/interface/src/avatar/Hand.cpp b/interface/src/avatar/Hand.cpp
index ef6b97d6cd..0b399c4287 100644
--- a/interface/src/avatar/Hand.cpp
+++ b/interface/src/avatar/Hand.cpp
@@ -616,23 +616,37 @@ void Hand::renderLeapHands(bool isMine) {
         }
     }
 
-    // Draw the palms
-    for (size_t i = 0; i < getNumPalms(); ++i) {
-        PalmData& palm = getPalms()[i];
-        if (palm.isActive()) {
-            const float palmThickness = 0.02f;
-            if (palm.getIsCollidingWithPalm()) {
-                glColor4f(1, 0, 0, 0.50);
-            } else {
-                glColor4f(handColor.r, handColor.g, handColor.b, 0.25);
+    // Draw the hand paddles
+    int MAX_NUM_PADDLES = 2; // one for left and one for right
+    glColor4f(handColor.r, handColor.g, handColor.b, 0.3f);
+    for (int i = 0; i < MAX_NUM_PADDLES; i++) {
+        const PalmData* palm = getPalm(i);
+        if (palm) {
+            // compute finger axis
+            glm::vec3 fingerAxis(0.f);
+            for (size_t f = 0; f < palm->getNumFingers(); ++f) {
+                const FingerData& finger = (palm->getFingers())[f];
+                if (finger.isActive()) {
+                    glm::vec3 fingerTip = finger.getTipPosition();
+                    glm::vec3 fingerRoot = finger.getRootPosition();
+                    fingerAxis = glm::normalize(fingerTip - fingerRoot);
+                    break;
+                }
             }
-            glm::vec3 tip = palm.getPosition();
-            glm::vec3 root = palm.getPosition() + palm.getNormal() * palmThickness;
-            const float radiusA = 0.05f;
-            const float radiusB = 0.03f;
-            Avatar::renderJointConnectingCone(root, tip, radiusA, radiusB);
+            // compute paddle position
+            glm::vec3 handPosition;
+            if (i == SIXENSE_CONTROLLER_ID_LEFT_HAND) {
+                _owningAvatar->getSkeletonModel().getLeftHandPosition(handPosition);
+            } else if (i == SIXENSE_CONTROLLER_ID_RIGHT_HAND) {
+                _owningAvatar->getSkeletonModel().getRightHandPosition(handPosition);
+            }
+            glm::vec3 tip = handPosition + HAND_PADDLE_OFFSET * fingerAxis;
+            glm::vec3 root = tip + palm->getNormal() * HAND_PADDLE_THICKNESS;
+            // render a very shallow cone as the paddle
+            Avatar::renderJointConnectingCone(root, tip, HAND_PADDLE_RADIUS, 0.f);
         }
     }
+
     glDepthMask(GL_TRUE);
     glEnable(GL_DEPTH_TEST);
 
diff --git a/interface/src/avatar/Hand.h b/interface/src/avatar/Hand.h
index 8a672fc1d9..bc671d1926 100755
--- a/interface/src/avatar/Hand.h
+++ b/interface/src/avatar/Hand.h
@@ -30,6 +30,10 @@
 class Avatar;
 class ProgramObject;
 
+const float HAND_PADDLE_OFFSET = 0.1f;
+const float HAND_PADDLE_THICKNESS = 0.05f;
+const float HAND_PADDLE_RADIUS = 0.15f;
+
 class Hand : public HandData {
 public:
     Hand(Avatar* owningAvatar);
diff --git a/interface/src/avatar/SkeletonModel.cpp b/interface/src/avatar/SkeletonModel.cpp
index 50b6c4f072..ae16bd81f8 100644
--- a/interface/src/avatar/SkeletonModel.cpp
+++ b/interface/src/avatar/SkeletonModel.cpp
@@ -8,6 +8,8 @@
 
 #include <glm/gtx/transform.hpp>
 
+#include <HandData.h>
+
 #include "Application.h"
 #include "Avatar.h"
 #include "Menu.h"
diff --git a/interface/src/avatar/SkeletonModel.h b/interface/src/avatar/SkeletonModel.h
index 776eb29e3b..e5ca5c7623 100644
--- a/interface/src/avatar/SkeletonModel.h
+++ b/interface/src/avatar/SkeletonModel.h
@@ -9,7 +9,6 @@
 #ifndef __interface__SkeletonModel__
 #define __interface__SkeletonModel__
 
-#include <HandData.h>
 
 #include "renderer/Model.h"
 
diff --git a/interface/src/devices/OculusManager.cpp b/interface/src/devices/OculusManager.cpp
index b45b7f7364..65c0d9332f 100644
--- a/interface/src/devices/OculusManager.cpp
+++ b/interface/src/devices/OculusManager.cpp
@@ -67,6 +67,9 @@ void OculusManager::connect() {
         _scaleLocation = _program.uniformLocation("scale");
         _scaleInLocation = _program.uniformLocation("scaleIn");
         _hmdWarpParamLocation = _program.uniformLocation("hmdWarpParam");        
+    } else {
+        _deviceManager.Clear();
+        System::Destroy();
     }
 #endif
 }
diff --git a/interface/src/renderer/Model.cpp b/interface/src/renderer/Model.cpp
index 570d778c96..b5de82ebb6 100644
--- a/interface/src/renderer/Model.cpp
+++ b/interface/src/renderer/Model.cpp
@@ -488,6 +488,22 @@ bool Model::getEyePositions(glm::vec3& firstEyePosition, glm::vec3& secondEyePos
     return getJointPosition(geometry.leftEyeJointIndex, firstEyePosition) &&
         getJointPosition(geometry.rightEyeJointIndex, secondEyePosition);
 }
+    
+bool Model::getLeftHandPosition(glm::vec3& position) const {
+    return getJointPosition(getLeftHandJointIndex(), position);
+}
+
+bool Model::getLeftHandRotation(glm::quat& rotation) const {
+    return getJointRotation(getLeftHandJointIndex(), rotation);
+}
+
+bool Model::getRightHandPosition(glm::vec3& position) const {
+    return getJointPosition(getRightHandJointIndex(), position);
+}
+
+bool Model::getRightHandRotation(glm::quat& rotation) const {
+    return getJointRotation(getRightHandJointIndex(), rotation);
+}
 
 bool Model::setLeftHandPosition(const glm::vec3& position) {
     return setJointPosition(getLeftHandJointIndex(), position);
diff --git a/interface/src/renderer/Model.h b/interface/src/renderer/Model.h
index fc3a0687b8..ae4303caea 100644
--- a/interface/src/renderer/Model.h
+++ b/interface/src/renderer/Model.h
@@ -82,6 +82,22 @@ public:
     /// \return whether or not both eye meshes were found
     bool getEyePositions(glm::vec3& firstEyePosition, glm::vec3& secondEyePosition) const;
     
+    /// Retrieve the position of the left hand
+    /// \return true whether or not the position was found
+    bool getLeftHandPosition(glm::vec3& position) const;
+    
+    /// Retrieve the rotation of the left hand
+    /// \return true whether or not the rotation was found
+    bool getLeftHandRotation(glm::quat& rotation) const;
+    
+    /// Retrieve the position of the right hand
+    /// \return true whether or not the position was found
+    bool getRightHandPosition(glm::vec3& position) const;
+    
+    /// Retrieve the rotation of the right hand
+    /// \return true whether or not the rotation was found
+    bool getRightHandRotation(glm::quat& rotation) const;
+    
     /// Sets the position of the left hand using inverse kinematics.
     /// \return whether or not the left hand joint was found
     bool setLeftHandPosition(const glm::vec3& position);
diff --git a/interface/src/starfield/Controller.cpp b/interface/src/starfield/Controller.cpp
index b738749416..0987a14dd5 100755
--- a/interface/src/starfield/Controller.cpp
+++ b/interface/src/starfield/Controller.cpp
@@ -24,7 +24,8 @@ bool Controller::computeStars(unsigned numStars, unsigned seed) {
     
     this->retile(numStars, _tileResolution);
     
-    qDebug() << "Total time to generate stars: " << ((usecTimestampNow() - usecTimestamp(&startTime)) / 1000) << "msec";
+    qDebug() << "Total time to retile and generate stars: "
+        << ((usecTimestampNow() - usecTimestamp(&startTime)) / 1000) << "msec";
     
     return true;
 }
diff --git a/libraries/avatars/src/AvatarData.h b/libraries/avatars/src/AvatarData.h
index 83bcb41eea..923d5510b0 100755
--- a/libraries/avatars/src/AvatarData.h
+++ b/libraries/avatars/src/AvatarData.h
@@ -33,9 +33,10 @@ typedef unsigned long long uint64_t;
 #include <QtCore/QUuid>
 #include <QtCore/QVariantMap>
 
+#include <CollisionInfo.h>
 #include <RegisteredMetaTypes.h>
-
 #include <NodeData.h>
+
 #include "HeadData.h"
 #include "HandData.h"
 
@@ -131,6 +132,10 @@ public:
     virtual bool findSpherePenetration(const glm::vec3& penetratorCenter, float penetratorRadius,
         glm::vec3& penetration, int skeletonSkipIndex = -1) const { return false; }
 
+    virtual bool findSphereCollision(const glm::vec3& sphereCenter, float sphereRadius, CollisionInfo& collision) {
+        return false;
+    }
+    
 protected:
     QUuid _uuid;
 
diff --git a/libraries/avatars/src/HandData.cpp b/libraries/avatars/src/HandData.cpp
index 44f291411c..b8704777de 100644
--- a/libraries/avatars/src/HandData.cpp
+++ b/libraries/avatars/src/HandData.cpp
@@ -38,8 +38,17 @@ PalmData& HandData::addNewPalm()  {
     return _palms.back();
 }
 
-const int SIXENSE_CONTROLLER_ID_LEFT_HAND = 0;
-const int SIXENSE_CONTROLLER_ID_RIGHT_HAND = 1;
+const PalmData* HandData::getPalm(int sixSenseID) const {
+    // the palms are not necessarily added in left-right order, 
+    // so we have to search for the right SixSenseID
+    for (int i = 0; i < _palms.size(); i++) {
+        const PalmData* palm = &(_palms[i]);
+        if (palm->getSixenseID() == sixSenseID) {
+            return palm->isActive() ? palm : NULL;
+        }
+    }
+    return NULL;
+}
 
 void HandData::getLeftRightPalmIndices(int& leftPalmIndex, int& rightPalmIndex) const {
     leftPalmIndex = -1;
diff --git a/libraries/avatars/src/HandData.h b/libraries/avatars/src/HandData.h
index a0c8fed980..1aa60da927 100755
--- a/libraries/avatars/src/HandData.h
+++ b/libraries/avatars/src/HandData.h
@@ -35,6 +35,9 @@ const int BUTTON_FWD = 128;
 
 const float LEAP_UNIT_SCALE = 0.001f; ///< convert mm to meters
 
+const int SIXENSE_CONTROLLER_ID_LEFT_HAND = 0;
+const int SIXENSE_CONTROLLER_ID_RIGHT_HAND = 1;
+
 class HandData {
 public:
     HandData(AvatarData* owningAvatar);
@@ -55,6 +58,7 @@ public:
 
     std::vector<PalmData>& getPalms() { return _palms; }
     const std::vector<PalmData>& getPalms() const { return _palms; }
+    const PalmData* getPalm(int sixSenseID) const;
     size_t getNumPalms() const { return _palms.size(); }
     PalmData& addNewPalm();
 
diff --git a/libraries/particles/src/ParticleCollisionSystem.cpp b/libraries/particles/src/ParticleCollisionSystem.cpp
index f478fe9cf1..a57475b4db 100644
--- a/libraries/particles/src/ParticleCollisionSystem.cpp
+++ b/libraries/particles/src/ParticleCollisionSystem.cpp
@@ -11,6 +11,7 @@
 #include <AbstractAudioInterface.h>
 #include <VoxelTree.h>
 #include <AvatarData.h>
+#include <CollisionInfo.h>
 #include <HeadData.h>
 #include <HandData.h>
 
@@ -137,15 +138,14 @@ void ParticleCollisionSystem::updateCollisionWithParticles(Particle* particleA)
 
 void ParticleCollisionSystem::updateCollisionWithAvatars(Particle* particle) {
 
-    // particles that are in hand, don't collide with other avatar parts
+    // particles that are in hand, don't collide with avatars
     if (particle->getInHand()) {
         return;
     }
 
-    //printf("updateCollisionWithAvatars()...\n");
     glm::vec3 center = particle->getPosition() * (float)(TREE_SCALE);
     float radius = particle->getRadius() * (float)(TREE_SCALE);
-    const float ELASTICITY = 0.4f;
+    const float ELASTICITY = 0.95f;
     const float DAMPING = 0.0f;
     const float COLLISION_FREQUENCY = 0.5f;
     glm::vec3 penetration;
@@ -154,77 +154,40 @@ void ParticleCollisionSystem::updateCollisionWithAvatars(Particle* particle) {
     // first check the selfAvatar if set...
     if (_selfAvatar) {
         AvatarData* avatar = (AvatarData*)_selfAvatar;
-        //printf("updateCollisionWithAvatars()..._selfAvatar=%p\n", avatar);
-
-        // check hands...
-        const HandData* handData = avatar->getHandData();
-
-        // TODO: combine hand and collision check into one.  Note: would need to supply
-        // CollisionInfo class rather than just vec3 (penetration) so we can get back
-        // added velocity.
-
-        if (handData->findSpherePenetration(center, radius, penetration, collidingPalm)) {
-            // TODO: dot collidingPalm and hand velocities and skip collision when they are moving apart.
-            // apply a hard collision when ball collides with hand
-            penetration /= (float)(TREE_SCALE);
-            updateCollisionSound(particle, penetration, COLLISION_FREQUENCY);
-
-            // determine if the palm that collided was moving, if so, then we add that palm velocity as well...
-            glm::vec3 addedVelocity = NO_ADDED_VELOCITY;
-            if (collidingPalm) {
-                glm::vec3 palmVelocity = collidingPalm->getVelocity() / (float)(TREE_SCALE);
-                //printf("collidingPalm Velocity=%f,%f,%f\n", palmVelocity.x, palmVelocity.y, palmVelocity.z);
-                addedVelocity = palmVelocity;
+        CollisionInfo collision;
+        if (avatar->findSphereCollision(center, radius, collision)) {
+            if (glm::dot(particle->getVelocity(), collision._addedVelocity) < 0.f) {
+                // only collide when particle and collision point are moving toward each other
+                collision._penetration /= (float)(TREE_SCALE);
+                collision._addedVelocity /= (float)(TREE_SCALE);
+                updateCollisionSound(particle, collision._penetration, COLLISION_FREQUENCY);
+                applyHardCollision(particle, collision._penetration, ELASTICITY, DAMPING, collision._addedVelocity);    
             }
-
-            applyHardCollision(particle, penetration, ELASTICITY, DAMPING, addedVelocity);
-        } else if (avatar->findSpherePenetration(center, radius, penetration)) {
-            // apply hard collision when particle collides with avatar
-            penetration /= (float)(TREE_SCALE);
-            updateCollisionSound(particle, penetration, COLLISION_FREQUENCY);
-            glm::vec3 addedVelocity = avatar->getVelocity();
-            applyHardCollision(particle, penetration, ELASTICITY, DAMPING, addedVelocity);
         }
     }
 
     // loop through all the other avatars for potential interactions...
-    
     foreach (const SharedNodePointer& node, NodeList::getInstance()->getNodeHash()) {
         //qDebug() << "updateCollisionWithAvatars()... node:" << *node << "\n";
         if (node->getLinkedData() && node->getType() == NODE_TYPE_AGENT) {
-            // TODO: dot collidingPalm and hand velocities and skip collision when they are moving apart.
             AvatarData* avatar = static_cast<AvatarData*>(node->getLinkedData());
-            //printf("updateCollisionWithAvatars()...avatar=%p\n", avatar);
-            
-            // check hands...
-            const HandData* handData = avatar->getHandData();
-            
-            if (handData->findSpherePenetration(center, radius, penetration, collidingPalm)) {
-                // apply a hard collision when ball collides with hand
-                penetration /= (float)(TREE_SCALE);
-                updateCollisionSound(particle, penetration, COLLISION_FREQUENCY);
-                
-                // determine if the palm that collided was moving, if so, then we add that palm velocity as well...
-                glm::vec3 addedVelocity = NO_ADDED_VELOCITY;
-                if (collidingPalm) {
-                    glm::vec3 palmVelocity = collidingPalm->getVelocity() / (float)(TREE_SCALE);
-                    //printf("collidingPalm Velocity=%f,%f,%f\n", palmVelocity.x, palmVelocity.y, palmVelocity.z);
-                    addedVelocity = palmVelocity;
+
+            CollisionInfo collision;
+            if (avatar->findSphereCollision(center, radius, collision)) {
+                if (glm::dot(particle->getVelocity(), collision._addedVelocity) < 0.f) {
+                    // only collide when particle and collision point are moving toward each other
+                    collision._penetration /= (float)(TREE_SCALE);
+                    collision._addedVelocity /= (float)(TREE_SCALE);
+                    updateCollisionSound(particle, collision._penetration, COLLISION_FREQUENCY);
+                    applyHardCollision(particle, collision._penetration, ELASTICITY, DAMPING, collision._addedVelocity);    
                 }
-                
-                applyHardCollision(particle, penetration, ELASTICITY, DAMPING, addedVelocity);
-                
-            } else if (avatar->findSpherePenetration(center, radius, penetration)) {
-                penetration /= (float)(TREE_SCALE);
-                updateCollisionSound(particle, penetration, COLLISION_FREQUENCY);
-                glm::vec3 addedVelocity = avatar->getVelocity();
-                applyHardCollision(particle, penetration, ELASTICITY, DAMPING, addedVelocity);
             }
         }
     }
 }
 
 
+// TODO: convert applyHardCollision() to take a CollisionInfo& instead of penetration + addedVelocity
 void ParticleCollisionSystem::applyHardCollision(Particle* particle, const glm::vec3& penetration,
                                                  float elasticity, float damping, const glm::vec3& addedVelocity) {
     //
diff --git a/libraries/particles/src/ParticleCollisionSystem.h b/libraries/particles/src/ParticleCollisionSystem.h
index 920b89c053..13766a0264 100644
--- a/libraries/particles/src/ParticleCollisionSystem.h
+++ b/libraries/particles/src/ParticleCollisionSystem.h
@@ -61,4 +61,4 @@ private:
     AvatarData* _selfAvatar;
 };
 
-#endif /* defined(__hifi__ParticleCollisionSystem__) */
\ No newline at end of file
+#endif /* defined(__hifi__ParticleCollisionSystem__) */
diff --git a/libraries/shared/src/CollisionInfo.h b/libraries/shared/src/CollisionInfo.h
new file mode 100644
index 0000000000..4f46a6bfd3
--- /dev/null
+++ b/libraries/shared/src/CollisionInfo.h
@@ -0,0 +1,26 @@
+//
+//  CollisionInfo.h
+//  hifi
+//
+//  Created by Andrew Meadows on 2014.01.13
+//  Copyright (c) 2014 High Fidelity, Inc. All rights reserved.
+//
+
+#ifndef __hifi__CollisionInfo__
+#define __hifi__CollisionInfo__
+
+#include <glm/glm.hpp>
+
+class CollisionInfo {
+public:
+    CollisionInfo() : _penetration(0.f), _addedVelocity(0.f) { }
+    ~CollisionInfo() {}
+
+    //glm::vec3 _point;
+    //glm::vec3 _normal;
+    glm::vec3 _penetration;
+    glm::vec3 _addedVelocity;
+};
+
+
+#endif /* defined(__hifi__CollisionInfo__) */
diff --git a/libraries/shared/src/GeometryUtil.cpp b/libraries/shared/src/GeometryUtil.cpp
index 5d6e216ad5..2627a9035a 100644
--- a/libraries/shared/src/GeometryUtil.cpp
+++ b/libraries/shared/src/GeometryUtil.cpp
@@ -114,6 +114,30 @@ bool findSpherePlanePenetration(const glm::vec3& sphereCenter, float sphereRadiu
     return false;
 }
 
+bool findSphereDiskPenetration(const glm::vec3& sphereCenter, float sphereRadius, 
+                               const glm::vec3& diskCenter, float diskRadius, const glm::vec3& diskNormal, 
+                               glm::vec3& penetration) {
+    glm::vec3 localCenter = sphereCenter - diskCenter;
+    float verticalDistance = glm::dot(localCenter, diskNormal);
+
+
+    if (abs(verticalDistance) < sphereRadius) {
+        // sphere hit the plane, but does it hit the disk?
+        // Note: this algorithm ignores edge hits.
+        glm::vec3 verticalOffset = verticalDistance * diskNormal;
+        if (glm::length(localCenter - verticalOffset) < diskRadius) {
+            // yes, hit the disk
+            penetration = (sphereRadius - abs(verticalDistance)) * diskNormal;
+            if (verticalDistance < 0.f) {
+                // hit the backside of the disk, so negate penetration vector
+                penetration *= -1.f;
+            }
+            return true;
+        }
+    }
+    return false;
+}
+
 bool findCapsuleSpherePenetration(const glm::vec3& capsuleStart, const glm::vec3& capsuleEnd, float capsuleRadius,
                                   const glm::vec3& sphereCenter, float sphereRadius, glm::vec3& penetration) {
     if (findSphereCapsulePenetration(sphereCenter, sphereRadius,
diff --git a/libraries/shared/src/GeometryUtil.h b/libraries/shared/src/GeometryUtil.h
index 2b782b43ae..59ad055445 100644
--- a/libraries/shared/src/GeometryUtil.h
+++ b/libraries/shared/src/GeometryUtil.h
@@ -47,6 +47,17 @@ bool findSphereCapsuleConePenetration(const glm::vec3& sphereCenter, float spher
 bool findSpherePlanePenetration(const glm::vec3& sphereCenter, float sphereRadius, 
                                 const glm::vec4& plane, glm::vec3& penetration);
                                   
+/// Computes the penetration between a sphere and a disk.
+/// \param sphereCenter center of sphere
+/// \param sphereRadius radius of sphere
+/// \param diskCenter center of disk
+/// \param diskRadius radius of disk
+/// \param diskNormal normal of disk plan
+/// \return true if sphere touches disk (does not handle collisions with disk edge)
+bool findSphereDiskPenetration(const glm::vec3& sphereCenter, float sphereRadius, 
+                               const glm::vec3& diskCenter, float diskRadius, const glm::vec3& diskNormal, 
+                               glm::vec3& penetration);
+
 bool findCapsuleSpherePenetration(const glm::vec3& capsuleStart, const glm::vec3& capsuleEnd, float capsuleRadius,
                                   const glm::vec3& sphereCenter, float sphereRadius, glm::vec3& penetration);
 
diff --git a/libraries/shared/src/NodeList.h b/libraries/shared/src/NodeList.h
index 021234b8ee..391e329200 100644
--- a/libraries/shared/src/NodeList.h
+++ b/libraries/shared/src/NodeList.h
@@ -99,7 +99,7 @@ public:
     int fillPingPacket(unsigned char* buffer);
     int fillPingReplyPacket(unsigned char* pingBuffer, unsigned char* replyBuffer);
     void pingPublicAndLocalSocketsForInactiveNode(Node* node);
-    void killNodeWithUUID(const QUuid& nodeUUID);
+    
     void sendKillNode(const char* nodeTypes, int numNodeTypes);
 
     SharedNodePointer nodeWithAddress(const HifiSockAddr& senderSockAddr);
@@ -123,6 +123,8 @@ public slots:
     void sendDomainServerCheckIn();
     void pingInactiveNodes();
     void removeSilentNodes();
+    
+    void killNodeWithUUID(const QUuid& nodeUUID);
 signals:
     void domainChanged(const QString& domainHostname);
     void nodeAdded(SharedNodePointer);