Turning the grid on seems to fix it, and occasionally it'll flash the color it's supposed to be if I swing the camera around. I didn't change anything, I never had the grid on when I started the game, and it was fine then.

Edit: It's got something to do with antialiasing. When I turned it off, the problem went away. When I tried turning it back on, I found something strange. I tried setting it to 2X (my preferred setting in all games) and found it just wouldn't stick. It kept defaulting to 4X after the "Restart the game" popup. And when i restarted the problem was there again. So I set it to 8X and restarted, map's fine. Tried setting it to 2X, it still wouldn't stick and the problem came back on the next reload.

Isn't the "multisample=" in settings.ini supposed to be AA? Changing that doesn't do anything, and changing the AA in-game doesn't change anything in the settings.ini, either.

Double Edit: IDK, maybe it's got nothing to do with AA, and it only happens most of the time. I've been loading and reloading and it's there 4 times out of five. Still, I can't get the game to use 2X AA, so that's a problem, too.