Found this trace in kern.log. It should be when I switched to the latest nvidia driver (NVIDIA-Linux-x86-260.19.44.run) from nvidia.com to see if that works.
** Attachment added: "syslog-x-freeze-trace-proprietary-nvidia-driver.log" https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/733374/+attachment/1902068/+files/syslog-x-freeze-trace-proprietary-nvidia-driver.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/733374 Title: X freeze, nvidia-current, Ubuntu 10.10 Maverick -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs