If some people don't want to do the above
If you post back i'll upload the specific OS driver
But i've tried to explain easily and it's not hard to do (Trust Me lol)
These look and work solid so far in my Vista x64 setup
Bit of info
They were for the new very soon to released nvidia cards
With the modded .infs they support all the 4 major MS OS's
Hope that Helps
Ciao
Def