Nvidia drivers 260.63 anybody else have issues?

I'm currently using Nvidia beta drivers 260.63. Reason being is that I'm running a gtx460, and they perform quite a bit better than the current 258.96 drivers in most games.
Question I have is anyone else tried this successfully with CoX?
Right now if I try and go into the graphics options and change anything up or down, it immediately hangs. I have tried it with safe mode in the game as well with the same affect. I have also tried it on a 9800gtx+.
I understand that CoX may just not like the 260.63 drivers, but really don't want to downgrade them if it works fine with about 30 of my other games.

Specs:
Intel I7 920
Gigabyte GA-EX58-UD5
6GB OCZ Platinum 7-7-7-24
EVGA GTX460 1gb SC
EVGA 9800GTX+ (dedicated PhysX)
Enermax Revolution85+ 1050W PSU

They work fine for me, actually seems like I got a few extra fps with these ones.

EVGA Precision tool? Try leaving it off till you are done changing settings.



*edited for missing letters....... I don't know who stole em, but I blame Hyperstrike!