All Points Bulletin Artifacting?

I'm playing All Points Bulletin on the play for free Steam edition. A am running 2 6950's in crossfire. Characters will be bright red or orange or glitching and what almost looks like artifacted. Is this a known issue? Are there any fixes available?

Crossfire and SLI have been broken for that game since it's inception. I think SLI was fixed though.

Try turning off AA, I used to have that as well, but I only have a single card, so not sure if it will fix it.