Comment 71 for bug 775060

I am also seeing this problem on an IBM ThinkCentre. I am using "Ubuntu Classic" as Unity was not supported. I just completed a fresh 11.04 install and updated and thought I had the problem fixed, but it is very random. It seems to be somewhat reproducible with browser use, but I have seen the problem with both chromium and firefox browsers. The frequency is every hour to once a week without a clear pattern.

My graphics card: nVidia Corporation NV18 [GeForce4 MX 440 AGP 8x] (rev c1) with the experimental 3D support driver from NVIDIA.

I will see if I can post some logs.