chaintech SA6600 AGP 6600 can't work in AGP 4x?

[gossspel]

I am building a slight game computer for my little cousin. I used my old athlon 1800+ and asus A7N266-VM with onboard geforce 2 MX, I decided to add in an AGP card so that my cousin can game with this set up. I chose the chaintech geforce 6600 agp http://www.chaintechusa.com/tw/eng/product_spec.asp?MPSNo=14&PISNo=321
I install the geforce 6600 into the mb's agp 4x slot and it was working at first. I install the window xp pro and everything.I even installed the 3d mark 03 and ran a test on it. It only gets 3527, I think that is because I didn't install the agp driver and enable the agp 4x. Finally, I have to install the mb's agp driver. After I install the agp driver, the computer can boot and load window, but after that comes a blank screen, and the HD Led didn't work anymore, seem like system hang. I rebooted several times and it is the same. After that, I unplugg the geforce 6600 and I use the on board GF 2mx, and I can get into window again. I just want to know if the GF 6600 is defective or it really didn't like AGP 4x......................

 

[Crashman]

LOL, it has nothing to do with AGP4x. You can try reloading Windows, then putting in the AGP driver BEFORE the graphics driver...

Yeh, it's a driver issue.

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[gossspel]

I tried putting the agp driver before the graphic driver, but after I install the graphic driver 77.72, I still have the blank screen after restarting don't know why.

 

[gossspel]

I tried putting the agp driver before the graphic driver, but after I install the graphic driver 77.72, I still have the blank screen after restarting don't know why.

 

[Crashman]

That sounds like an invalid refresh rate. It can be a pain to fix, so I'll leave it to someone with more patience to help.

<font color=blue>Only a place as big as the internet could be home to a hero as big as Crashman!</font color=blue>
<font color=red>Only a place as big as the internet could be home to an ego as large as Crashman's!</font color=red>