@Carey: do you have compiz option "Workarounds > Keep previews of minimized windows" active? If so, this is bug #765469, which does not satisfy the conditions of comment #77 because the window can still be alt+dragged. I can indeed reproduce what you say with a non-maximized update-manager window if I turn on this compiz option.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/709461 Title: Application windows can sometimes fail to display and will mask regions of the screen -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
