Exception access violation?

[sndbarry]

Looks like a corrupted install, try re-installing or verifying the integrity cache if you are using Steam.

Hi,

So this isn't a problem with my graphics card? I'm not using Steam. As for re-installing, wouldn't that mean that I'd be starting the game over from scratch?! Or is that not the case? I've also wondered about installing the patch in case that might help. But the reason I haven't is that it looks like the patch replaces the version I've been playing and, again, I'd be starting from scratch. Am I wrong about that? (Hope so.) Thanks.