Comment 8 for bug 577997

I've been able to work around the problem by limiting the mouse and window transitions between screens. It seems the problem is not how many transitions you make between the screens, but how fast you make them. If you mostly work in in between the screens, you have a higher chance of hitting this bug. Anyway, I'm still afraid for my session stability (anyone can crash my X by wiggling the mouse while the screensaver is on) so I'm looking for a fix.