Comment 159 for bug 439448

I'm pretty sure this is occurs compiz-only. I never saw it before I switched to compiz (1.5 months), now I've seen it multiple times. The only two people who have reported this with metacity I think made mistakes--Dave's screenshot looks like a different bug and Tom's has telltale compiz shadow around the menu.

Also, this doesn't seem upstream as I can't find any reports of other distros having the problem. I think it's Ubuntu-specific. :-/