Comment 55 for bug 362359

Yes, this bug still exists on Lucid with latest updates, but it is now much less frequent. On Karmic it would happen every 1-2 days. I've been running Lucid for over a month and it has taken this long to happen only once. (I use my computer all day every day.)

Exactly the same bug: Focus is stuck in a Window. Can get to other windows only by closing the stuck window, then you're stuck in the next window. Alt-Tab doesn't work (no effect whatsoever). I think the mouse cursor is a resize one like ->| but I'm not certain. Resize works so you can expose other windows, but clicking on them has no effect.