This affects me as well. I don't think it's related to nvidia since I have intel graphics on my laptop. killall gnome-panel fixes the problem. It's a painting problem but also a button sensitivity one. What I mean is, this problem appears somewhere in the icons area on the top-right and the buttons that happen to be hidden by another badly rendered part are insensible and cannot be pressed.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/649693 Title: Gnome Panel messed up (painting) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs