Just to note - have seriously tried in the Desktop > unity login to cause this, have not be able to since the upgrade to 0ubuntu11
However have seen it once in a Classic > gnome-panel login, though don't spend enough time using that interface to really confirm or present decent test case. I'm wondering what login the last 2 reporters are using? -- 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: semi-random invisible window with x geometry on top layer possible, all viewport only (one ws though) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs