Originally Posted by Kloppstock
I just switched graphic card from ATI to Nvidia just to get Grim to work
A Geforce 8600 GTS, latest nvidia driver installed
i had the same problem with my Geforce 8600GT and i wrote a fix for the problem. it's on this thread: http://www.lucasforums.com/showthread.php?t=197200
. you can try if you want to.