Unity Crash?

[Amichai Rotman]

Hi all,

I am running Ubuntu 11.10 with an nVidia GForce 8400GS.

Every now and then I notice the "frame" around the windows (the one
containing the minimize, restore and close buttons of each window) is gone.
I can't point to a specific application or action that causes this. To
restore it I run 'unity --replace' from the Run dialogue (ALT-F2).

Is there any way to track the culprit? What can I do?

Thanks!

Amichai.
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