Looks like a compiz bug, saw this again today, still happening in the latest natty.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/737622 Title: moving screen position causes areas of screen to become corrupt To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/737622/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs