Hi, I've been running into a reoccuring problem where the game screen is freezing on me. The game itself seems to still be running -- the music is playing, and I can press escape and hear the menu sounds -- but the visible screen freezes in place. This seems to happen at random. Sometimes I've gotten an hour into the game, other times I haven't even gotten past entering my name before hitting a freeze.
Can I get some help figuring out what might be causing this, or how to fix it?