diff --git a/Effects/skydome.eff b/Effects/skydome.eff
index 09fd3ede9..a7070ff55 100644
--- a/Effects/skydome.eff
+++ b/Effects/skydome.eff
@@ -17,7 +17,6 @@
   <technique n="8">
     <predicate>
       <and>
-        <property>/sim/rendering/shader-effects</property>
         <property>/sim/rendering/shaders/skydome</property>
         <or>
           <less-equal>
diff --git a/Nasal/gui.nas b/Nasal/gui.nas
index 1eea0ec95..e6b955bea 100644
--- a/Nasal/gui.nas
+++ b/Nasal/gui.nas
@@ -1357,6 +1357,9 @@ if (qualityLevel == -1) {
 elsif (qualityLevel != nil) {
     setprop("/sim/rendering/shaders/custom-settings",0);
     setprop("/sim/rendering/shaders/quality-level-internal",qualityLevel);
+    if (qualityLevel == 0) {
+        setprop("/sim/rendering/shaders/skydome",0);
+    }
 }
 # overwrite custom shader settings when quality-level is set through the slider 
 # in the Rendering Options dialog
diff --git a/Shaders/deferred-gbuffer.frag b/Shaders/deferred-gbuffer.frag
index 929743349..f6068010e 100644
--- a/Shaders/deferred-gbuffer.frag
+++ b/Shaders/deferred-gbuffer.frag
@@ -15,8 +15,9 @@ void main() {
     float specular = dot( gl_FrontMaterial.specular.rgb, vec3( 0.3, 0.59, 0.11 ) );
     float shininess = gl_FrontMaterial.shininess;
     float emission = dot( gl_FrontLightModelProduct.sceneColor.rgb, vec3( 0.3, 0.59, 0.11 ) );
-    ecNormal = (2.0 * gl_Color.a - 1.0) * ecNormal;
-    gl_FragData[0] = vec4( (ecNormal.xy + vec2(1.0,1.0)) * 0.5, 0.0, 1.0 );
+    
+	vec3 normal2 = (2.0 * gl_Color.a - 1.0) * ecNormal;
+    gl_FragData[0] = vec4( (normal2.xy + vec2(1.0,1.0)) * 0.5, 0.0, 1.0 );
     gl_FragData[1] = vec4( gl_Color.rgb * texel.rgb, float( materialID ) / 255.0 );
     gl_FragData[2] = vec4( specular, shininess / 255.0, emission, 1.0 );
 }