Hi all. Today my friend recieved a 3870x2 that I sent him. He was using a 9800GT..
Any way, we got it all installed using the following method -
Reboot in safe, run driver sweep.
Install Catalyst 10.9.
Install Nvidia driver
Install Physx (both of the ones recc for 1.044f).
It all went well, and Fluidmark was working. He got over 30FPS, about what was expected. However, when he installed Mafia II and ran it? strangeness. Without Physx on the game ran perfectly. However when turned on? http://www.youtube.com/watch?v=kYVyl2jiO2s
Look at what is happening. Huge artifacts, shards.. It's terrible.
I've had this very same card running hybrid Physx with an 8800 ultra, his 9800GT works flawlessly alone.