Index: dashboardview.cpp
===================================================================
--- dashboardview.cpp   (revision 739799)
+++ dashboardview.cpp   (working copy)
@@ -37,6 +37,11 @@
 {
     setContextMenuPolicy(Qt::NoContextMenu);
     setWindowFlags(Qt::FramelessWindowHint);
+    if (!PlasmaApp::hasComposite()) {
+       setAutoFillBackground(false);
+       setAttribute(Qt::WA_NoSystemBackground);
+    }
+
     //setWindowOpacity(0.9);
     setWindowState(Qt::WindowFullScreen);
     KWindowSystem::setState(winId(), NET::KeepAbove|NET::SkipTaskbar);