I have the steam version of this game. I've been having trouble with it crashing to desktop instantly, which has happened about 5 times now over the period of ~6 hours of gameplay. I'm using Windows XP and an 8800GT with the latest drivers. The problem seems to happen when I'm messing around inside the cooking menu. The most recent one happened when I opened the recipes menu by accident and closed it quickly.
I've tried turning Vsync on and off, and am playing fullscreen 1680x1050.