diff -r e24348a560a6 -r b72c6db6890b src/gui/image/qimage.cpp
--- a/src/gui/image/qimage.cpp	Fri Jun 11 14:24:45 2010 +0300
+++ b/src/gui/image/qimage.cpp	Wed Jun 23 19:07:03 2010 +0300
@@ -272,6 +272,8 @@
 
     switch (format) {
 
+    case QImage::Format_Mono:
+    case QImage::Format_MonoLSB:
     case QImage::Format_Indexed8:
         has_alpha_pixels = has_alpha_clut;
         break;