diff --git a/samples/graphics/rsxtest/source/main.cpp b/samples/graphics/rsxtest/source/main.cpp
index 0a08bc23..0b488ac8 100644
--- a/samples/graphics/rsxtest/source/main.cpp
+++ b/samples/graphics/rsxtest/source/main.cpp
@@ -451,7 +451,7 @@ void drawFrame()
 							GCM_CLEAR_S |
 							GCM_CLEAR_Z);
 
-	rsxSetZMinMaxControl(context,0,1,1);
+	rsxSetZMinMaxControl(context,GCM_FALSE, GCM_TRUE, GCM_FALSE);
 
 	for(i=0;i<8;i++)
 		rsxSetViewportClip(context,i,display_width,display_height);
diff --git a/samples/graphics/rsxtest_dl/source/main.cpp b/samples/graphics/rsxtest_dl/source/main.cpp
index 857ad392..055e2709 100644
--- a/samples/graphics/rsxtest_dl/source/main.cpp
+++ b/samples/graphics/rsxtest_dl/source/main.cpp
@@ -449,7 +449,7 @@ void drawFrame()
 							GCM_CLEAR_S |
 							GCM_CLEAR_Z);
 
-	rsxSetZMinMaxControl(gGcmContext,GCM_FALSE, GCM_TRUE, GCM_TRUE);
+	rsxSetZMinMaxControl(gGcmContext,GCM_FALSE, GCM_TRUE, GCM_FALSE);
 
 	for(i=0;i<8;i++)
 		rsxSetViewportClip(gGcmContext,i,display_width,display_height);
diff --git a/samples/graphics/rsxtest_flip/source/main.cpp b/samples/graphics/rsxtest_flip/source/main.cpp
index 193efcf3..a7e5b72e 100644
--- a/samples/graphics/rsxtest_flip/source/main.cpp
+++ b/samples/graphics/rsxtest_flip/source/main.cpp
@@ -449,7 +449,7 @@ void drawFrame()
 							GCM_CLEAR_S |
 							GCM_CLEAR_Z);
 
-	rsxSetZMinMaxControl(gGcmContext,0,1,1);
+	rsxSetZMinMaxControl(gGcmContext,GCM_FALSE, GCM_TRUE, GCM_FALSE);
 
 	for(i=0;i<8;i++)
 		rsxSetViewportClip(gGcmContext,i,display_width,display_height);
diff --git a/samples/graphics/rsxtest_spu/source/main.cpp b/samples/graphics/rsxtest_spu/source/main.cpp
index e165aa02..b2a50443 100644
--- a/samples/graphics/rsxtest_spu/source/main.cpp
+++ b/samples/graphics/rsxtest_spu/source/main.cpp
@@ -245,7 +245,7 @@ void drawFrame()
 							GCM_CLEAR_S |
 							GCM_CLEAR_Z);
 
-	rsxSetZMinMaxControl(context,0,1,1);
+	rsxSetZMinMaxControl(context,GCM_FALSE, GCM_TRUE, GCM_FALSE);
 
 	for(i=0;i<8;i++)
 		rsxSetViewportClip(context,i,display_width,display_height);
diff --git a/samples/graphics/rsxtest_tile/source/main.cpp b/samples/graphics/rsxtest_tile/source/main.cpp
index 6f0ddae5..c5789800 100644
--- a/samples/graphics/rsxtest_tile/source/main.cpp
+++ b/samples/graphics/rsxtest_tile/source/main.cpp
@@ -449,7 +449,7 @@ void drawFrame()
 							GCM_CLEAR_S |
 							GCM_CLEAR_Z);
 
-	rsxSetZMinMaxControl(gGcmContext,0,1,1);
+	rsxSetZMinMaxControl(gGcmContext,GCM_FALSE, GCM_TRUE, GCM_FALSE);
 
 	for(i=0;i<8;i++)
 		rsxSetViewportClip(gGcmContext,i,display_width,display_height);