Comment 4 for bug 1215828

I'm afraid there is nothing more we can do at this point. There is a known problem in which compiz fails to start when its configuration gets in to a funny state, and the workaround is to reset the configuration (as you discovered). Unfortunately, resetting the configuration loses all the evidence of the funny state and no more information can be gleaned from it.

Closing the bug because it is not possible to find a fix for the reported problem and the reporter claims the problem has been resolved.