2 GPUS, 6 Monitors help

[DreamTheater27]

Hey guys, for my work I'm trying to enable 6 displays but with them all connected I can't get more than 4 to display. All 6 are detected in Windows and CCC. When I try to extend display on one of the disabled monitors it says that I must disable another monitor in order to connect one. I have 3 monitors hooked to one card and 3 on the other, this should be possible right? We have a 6990 card that's pushing 6 monitors on its own. Any help would be greatly appreciated thanks!

 

[DreamTheater27]

What graphics card(s) are you using and how are all the displays hooked up?

I am using 2 amd 7950s and I have 2 monitors hooked up through each card's DVI output and 4 DP (2 through each card)