Adding another "me too". Two nvidia 8600 GT cards with four monitors on 8.10 with everything updated and using Xinerama. I generally run a couple instances of firefox, thunderbird, pidgin, intellij, and a couple of terminal sessions. It seems to usually happen when I'm entering or leaving either firefox or thunderbird. I'd be happy to provide any other information if needed.
Adding another "me too". Two nvidia 8600 GT cards with four monitors on 8.10 with everything updated and using Xinerama. I generally run a couple instances of firefox, thunderbird, pidgin, intellij, and a couple of terminal sessions. It seems to usually happen when I'm entering or leaving either firefox or thunderbird. I'd be happy to provide any other information if needed.