Im not to sure about crossfire, but the new nvidia drivers might be coming out within the next 48 hours, which will include the profile

Hi for anyone that interested i edited the latest Nvidia Sli profile, i have put it on the nvidia forum,

http://forums.nvidia.com/index.php?showtopic=194279

Just follow the instuctions and sli will work, i am now getting about 90 fps with gtx 460 sli