Please Help! [SOLVED!]

edit: fixed. Thanks for the help

I just replaced my old GeForce3 Ti200 with an AGP 6600GT. I have updated with the latest Forceware drivers.

My system is as follows:

PIV 2.4c @ 3.12ghz
1gig PC3200 RAM
ASUS P4P800 mb
350W power supply
WinXP Pro

The card seemed to install fine. I can run Windows and browse websites with no trouble whatsoever. I can play DVDs with no trouble whatsoever. The trouble begins when I try to play a game.

The card performs well, but after about 1 minute the monitor turns off, the computer doesn't respond, but doesn't reset (ie it remains powered). It does this for anything from Quake3 to Doom3. It is not overheating (the fan is working fine and the onboard temp monitor has it running nice and cool).

I thought perhaps power may be a problem, so I brought my CPU down from 3.12ghz to the stock 2.4. I still get the same problem. Also, the card claims to be ok for 300W, so in theory I would be ok with 350.

One thing I notice is when I go into the device settings, it says under Adaptor Information, Bus: PCIx0

It should be AGP, but I don't see how it could be a problem. Is this a sign of driver trouble?

Any advice is appreciated. Like I said, only 3d applications give it trouble, and only after running for a minute or two. It is not overheating. So I guess it is a power or driver problem?

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PIV 2.4c @ 3.12ghz
1gig PC3200 (512mbx2)
ASUS P4P800
GF3 Ti200 64mb (soon to be replaced)
WinXP Pro
3DMark2001SE: 6453
3DMark2003: 746
<P ID="edit"><FONT SIZE=-1><EM>Edited by sirak on 11/29/04 08:53 PM.</EM></FONT></P>

You need to install chipset drivers

If it says PCIx0 under the Nvidia driver info, that means the motherboard chipset drivers are not installed. I forgot one time, and wow, big mistake. My 3DMark score was like 1/4 of what it should have been. Reinstall the chipset drivers, and it should say AGP 8x.