Nvidia Quad-Sli 7950gx2

hello people
i have an xps720 have been running opensuse 11 with no probs at all installing all nvidia drivers and all worked great.after installing 11.1 from scratch kde4.1 i cannot get the drivers to work they install fine after installing the kernel source and gcc,make is already there on 11.1.
the only way i get accelerated g raphics is to take 1 7950gx2 card out of the pc.then all works fine.does anybody know how to get the system to see the second card correctly?
thx :frowning:

i may note i also have a pair of 9500gt cards i can try today but i dont think it will make a dif.