Originally Posted by Will
I'm thinking the most likely culprit is your video card, but the problem is that I'm having trouble finding information on the Radeon 9100. Could you try going to this link
and downloading the Catalyst Software Suite? Then try to install that file. With any luck, everything will install properly and it might fix the game for you.
Seems I was a little slow with posting.
I found the latest catalyst for the graphics chip here
in case that one fails and ATI drivers are prefered.