I've seen this bug in Ubuntu and Debian Squeeze- it happens after emerging from screensaver with Compiz running. It's a manifestation of this Compiz bug:
https://bugs.launchpad.net/compiz/+bug/438868 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. https://bugs.launchpad.net/bugs/517207 Title: Totem controls disappear when hovered over. -- desktop-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
