The culprit in my case was XGL! I'm now running the latest ATi drivers without XGL enabled as per these instructions: http://forlong.blogage.de/article/2007/10/23/fglrx-8423---finally-with-AIGLX-support and I haven't encountered the problem since. Hopefully this will work for other people as well.
The culprit in my case was XGL! I'm now running the latest ATi drivers without XGL enabled as per these instructions: http:// forlong. blogage. de/article/ 2007/10/ 23/fglrx- 8423--- finally- with-AIGLX- support and I haven't encountered the problem since. Hopefully this will work for other people as well.