One card working in crossfire.

Basically, one card isn't working. It used to work, but now it does not, i'm not sure how long it has been going on but one card will run at 100% gpu, the other will run at 0%. Pictures enclosed.
http://i55.tinypic.com/31691eo.png
http://i53.tinypic.com/nfgt9c.png
I took a shot of MSI afterburn showing one at 100 and the other at 0, but it doesn't seem to want to upload. Let me know if there's any other information i can give you to help me figure this out. Thanks!

 

I have any ATI cards so I can't comment on crossfire but the first thing to do is run a benchmark such as 3dmark then compare it to reference scores to see if one card isn't working,this will be pretty obvious to spot as any benchmark that can efficiently make use of two cards will give one third to double the performance.