Red Faction Guerilla thick scan lines??

[CroutonsofDeath{RD}]

Okay, I recently got a new computer and decided to play RFG again and I get these annoying, funky scan lines that are thick and like to pan around and give me motion sickness. This doesn't happen with any other game, and on my old computer the game didn't have this problem (Though the overall performance is still improved) and its REALLY annoying me. I asked one person and he said it was my refresh rate, but my refresh rate is fine, and as I said RFG is the only game that's messing up.

Here are my specs:

Processor: 64 bitAMD Phenom II x4 965 Processor 3.40 GHz
OS: Windows 7 Ultimate 64 bit
RAM:8.00 GB
Video:2x 1gb ATI Radeon HD 5800 series in CrossfireX configuration
Audio:Sound Blaster x-Fi Extreme Audio

 

[Ric]

If you may, is there a possibility of a screenshot when this occurs?

I also notice you have two video cards, can you confirm that your Crossfire configuration IS accurate and not causing this problem?