I just made this custom computer a month ago. I've been running my graphics off of the integrated chipset on my motherboard, but I now installed my graphics card (nvidia 6600 OC, old I know ) before installing it I un installed all the ATI drivers and any thing with the name ATI in it, through the "add and remove" feature in windows XP. I installed the new Nvidia drivers fine, it works great also, but for some reason windows still has ATI stuff on it... For instance when I right click the desktop it has an option called "ATI CATALYST(R)Control Center" This didn't bug me that much, but I did look too see if there was any more ATI software to be un installed; I couldn't find any.

Now I'm trying to overclock my graphics card, but when using ATI Tool it recognizes the ATI chipset instead so I can't run tests on my Nvidia card. Does any one know how to completely get rid of this ATI stuff?

My motherboard is a ASUS M2A-VM

This works http://www.drivercleaner.net/
there should be some freeware versions floating around to.

These programs know exactly what and where to look for old video, chipset and common drivers to be removed.

http://downloads.guru3d.com/download.php?det=745

Thats the download for the free version of Driver Cleaner Pro. Uninstall your ATI driver, Boot into safe mode, run DCP, remove everything ATI, then reboot and you'll be fine.

I've used it successfully multiple occasions when ATI's drivers have messed things up.

Thanks I did what you said and it's all gone now.