Inexplicable Crash
 

Hey, all. I just bought Republic Commando from Steam. I've seen problems like this around the rest of this forum. The usual kind of thing; after a new game, when the loading bar reaches 100%, the game crashes. However, the advice typically given doesn't work. My bumpmapping setting is already on low, and I haven't been able to find any other solutions.
My graphics card is a VIA/S3G Unichrome IGP.

Any help is appreciated; thanks in advance.