I'm pretty sure I have the same bug and at least I know the workaround - take a look at post #2 @ https://bugs.launchpad.net/ubuntu/+bug/162633 (it appears to be the same bug, could be marked as duplicate).
I'm pretty sure I have the same bug and at least I know the workaround - take a look at post #2 @ https:/ /bugs.launchpad .net/ubuntu/ +bug/162633 (it appears to be the same bug, could be marked as duplicate).