Wonder if it could be the same as this issue I'm seeing - https://bugs.freedesktop.org/show_bug.cgi?id=36699
** Bug watch added: freedesktop.org Bugzilla #36699 http://bugs.freedesktop.org/show_bug.cgi?id=36699 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/708749 Title: metacity leaves "dead windows" that float on top of other windows -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs