Comment 14 for bug 73698

This was happening to me in Ubuntu Gutsy, and now in Ubuntu Hardy Beta (plus updates) as well. Easily reproduced here by for example running Blender (or any OpenGL application, like games through WINE) in fullscreen and having a System Monitor panel applet. When the application is in focus, I can see the System Monitor applet blinking in whenever its state is refreshed (other applets too, of course, like Network Manager's etc.).

Video card is Intel GMA-950 (945GM chipset) with the intel driver, tried with both EXA and XAA, PageFlip and TripleBuffering on and off to no avail.