After playing once for a few hours with no issues, I put the game down for a while. Now when I load it back up, the cloth map (which was fine before) looks like this:
Reduced 73%
Original 800 x 600
I think it may have something to do with AA, because when I change that it will sometimes go away. The next time I load up the game, or the time after that, though, it'll be back.
Also, I can't set AA to 2X (my preferred setting). It defaults to 4X as soon as the "You must restart" window pops up.