I was using the latest when i had one... had an 8800 ultra... but it was a little glitchy
had to underclock the bugger to make it stable... XFX upped the clock but not the voltage which made it crash a lot
If your having problems try rivatuner

Interesting.... Im running an ultra and get the occasional blue screen. Which is related to GFX card. Not thought bout under clocking it

177.83_geforce_winxp_32bit_english_whql with my 8800GT. No issues and has added support for CUDA and PHYSX.
PhysX technology was bought by NVidia so I believe all 8 and 9 series have the PhysX chipset on board already..... Didnt realise the drivers to make it work were out though...
Looks like I got some drivers n some tuning to do
