[MattGavin]

Hi I just reformatted and put XP Pro x64 on and I put the newest NVidia Driver pack. I don't know whether it has SLI built in for my 2 8600GT's because the Control Panel has removed it. And if it doesn't can someone figure out how to get the old Control Panel back.

 

[BCCOMP]

Hi,
Is this the driver you installed:
http://www.nvidia.com/object/winxp_178.24_whql.html

According to the Release 178 Highlights SLI is supported.
Here are a couple of links that may help you:
http://www.slizone.com/object/slizone_ask_mmm018.html
http://www.slizone.com/page/slizone_appprofile.html

Hope this helps.
Bill