5770 crossfire artifacting.

Ok, so here's my issue. I bought an XFX ati 5770 XXX series card, I asked XFX if the Juniper XT version would work in crossfire with it (i figured it would but just to make sure I asked them). Of course they said yes, the overclocked version will just downclock to match the gpu of the XT version. Anywho, I purchased this second card, put it in my machine and now I see artifacting in games. BAD artifacting that is, I then switched my cards around to see if it was the slots or even if it was because the wrong one was primary. No go nothing worked, XFX says it sounds like a mobo issue (which isn't the case) I called asus and they said it wasnt a mobo issue. Anywho the weird part is that, it only happens when the game is in focus. If I alt-tab out of the game and i'm able to see the game in a window unfocused it works flawlessly (but i cant play the game because its out of focus). I've ran myself up the wall troubleshooting and have no idea what it could be.
Note: I've tried drivers ranging from 10.6-10.9, app profiles 10.6-10.9, and Ive also tried overclocking the lower model to match the higher one (although I didn't expect it to work and xfx said it didnt matter)



My specs are as follows:

i7-930 2.8
P6X58D-E LGA 1366 INTEL X58 SATA 6G
Rosewill Xtreme Series RX950-S-B 950W
3x2gb G.Skill PC2000 1.6v DDR3
XFX 5770 XXX series
XFX 5770 Juniper XT