diff --git a/upptst/AlphaBlendDeviceCaps/AlphaBlendDeviceCaps.upp b/upptst/AlphaBlendDeviceCaps/AlphaBlendDeviceCaps.upp
new file mode 100644
index 000000000..5872304d3
--- /dev/null
+++ b/upptst/AlphaBlendDeviceCaps/AlphaBlendDeviceCaps.upp
@@ -0,0 +1,9 @@
+uses
+	CtrlLib;
+
+file
+	main.cpp;
+
+mainconfig
+	"" = "GUI";
+
diff --git a/upptst/AlphaBlendDeviceCaps/main.cpp b/upptst/AlphaBlendDeviceCaps/main.cpp
new file mode 100644
index 000000000..fb3ae4dd5
--- /dev/null
+++ b/upptst/AlphaBlendDeviceCaps/main.cpp
@@ -0,0 +1,8 @@
+#include <CtrlLib/CtrlLib.h>
+
+using namespace Upp;
+
+GUI_APP_MAIN
+{
+	DDUMP(GetDeviceCaps(GetDC(NULL), SHADEBLENDCAPS) & SB_PIXEL_ALPHA);
+}
diff --git a/upptst/Blur/main.cpp b/upptst/Blur/main.cpp
index 762257f34..863b97254 100644
--- a/upptst/Blur/main.cpp
+++ b/upptst/Blur/main.cpp
@@ -11,7 +11,7 @@ struct MyApp : TopWindow {
 	
 	void Sync() {
 		double tm = (double)usecs();
-		imgb = GaussianBlur(img, ~radius, co);
+		imgb = Grayscale(img); // GaussianBlur(img, ~radius, co);
 		tm = (double)usecs() - tm;
 		Title(String() << tm << " us");
 		Refresh();