> OK. 8xx card, which are quite buggy. Can you please check what happens > if you try that now: > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=570988#75 Sorry, I'm at work and I hadn't tried that before: yep, the error is gone - thanks. As soon as I finish some work I will try to "invoke" the X crash with some not-all-the-time-but-usually-crashy moves and give some updates. E.