I doesn't happen much any more. I just switch to terminal and back and it's fixed. I'm sure I'll never find the real reason, so this might as well be closed.
** Changed in: metacity (Ubuntu) Status: Incomplete => Fix Released -- Unresponsive windows (Freeze) https://bugs.launchpad.net/bugs/72649 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs