Yeah, I'm guessing that might be it. Since I've been having similar problems with OpenGL and have an older ATI card. I have fully updated drivers and everything, but I may try rolling back to an older driver to see what results I can get.
EDIT: Through a series of fortunate events, I have come into the possession of a new(ish) laptop. It has a widescreen monitor, so I no longer have any problems with this game. Funny how things work, huh?