It happened to me. It seems that it has to be something with the new unity settings for compiz after upgrade from 11.04 or 11.10. I've found a workaround restoring unity's default settings by running unity --reset. This restores to the original settings, so if you've made a lot of changes with the ccsm (like me) it will be LOST. If you have enough patience, you can apply all of your changes back. It worked for me.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/990069 Title: Alt-Tab in Unity 12.04 brings up white window for multiple instances To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/990069/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
