I have a similar problem with Ubuntu edgy. The problem occur only when I run 3d applications.
The system hangs and I can't have a bug report. -- K8N800/K8M800 chipset intermittently hangs system https://launchpad.net/bugs/47340 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs