Comment 8 for bug 771448

Piling on.

I've been living with this since switching over to alpha Natty repositories several months ago. Figured it was just screwed up configuration, or would sort itself out , but recently did a clean upgrade on a second computer and am seeing exactly the same issue.

Edge flipping will work a few times (anywhere from once to a few dozen), and then stop. Extremely aggravating, since it's so random. As observed by the others, grabbing a title bar and moving a window around a little (usually) seems to reset things - temporarily. So does unchecking and rechecking the option in compizconfig, or disabling and reenabling wall. (Occasionally, it seems to develop a pattern, where particular sides are more problematic than others: for example, after "resetting" as above, doing nothing but flipping left and right will seem to work fine for some time, but not up and down - and trying to will break left/right as well. This may be my imagination though. It's hardly consistent.)

Derek's workaround seems to work (thanks Derek, big relief!).