diff --git a/cloud.cpp b/cloud.cpp
index 3a73134441..5e3a6ddd91 100644
--- a/cloud.cpp
+++ b/cloud.cpp
@@ -10,7 +10,7 @@
 #include "cloud.h"
 #include "util.h"
 
-#define COLOR_MIN 0.3f // minimum R/G/B value at 0,0,0 - also needs setting in field.cpp
+#define COLOR_MIN 0.2f // minimum R/G/B value at 0,0,0 - also needs setting in field.cpp
 
 Cloud::Cloud(int num, 
              glm::vec3 box,
diff --git a/field.cpp b/field.cpp
index aa3b496fb7..f8012df704 100644
--- a/field.cpp
+++ b/field.cpp
@@ -10,7 +10,7 @@
 #include "glm/glm.hpp"
 #define FIELD_SCALE 0.00050
 #define COLOR_DRIFT_RATE 0.001f // per-frame drift of particle color towards field element color
-#define COLOR_MIN 0.3f // minimum R/G/B value at 0,0,0 - also needs setting in cloud.cpp
+#define COLOR_MIN 0.2f // minimum R/G/B value at 0,0,0 - also needs setting in cloud.cpp
 
 #define USE_SCALAR 0 
 
diff --git a/main.cpp b/main.cpp
index 68b9244f27..ffdcb19503 100644
--- a/main.cpp
+++ b/main.cpp
@@ -243,6 +243,7 @@ void initDisplay(void)
     glEnable(GL_DEPTH_TEST);
     
     load_png_as_texture(texture_filename);
+    glutFullScreen();
 }
 
 void init(void)