Screen pixalating only with driver installation on brand new computer

[allprobmc]

I just put together a new Gigabyte 2004 rz series mobo with an athalon 3000+ xp processor and a Xfx geforce 6600gt vid card. Got a gig of ram and started up perfectly first try. Problem is when i load the drivers for the video card, the screen looks like your psp when you threw it at a wall and some of the crystals died in the display. Pixels are missin on the screen and opening new windows just makes it worse. I unihnstalled the drivers and the screen looked crystal clear again. Being that i built the computer for World of Warcraft, i kinda need those drivers to be in place for it to work properly :/ please offer any advice you might have, thanks.

 

[Blakhart]

Are all system drivers installed?
Have dx9c installed?

 

[allprobmc]

installed the CD that came with the mobo, and also dx9 that was on the disc with the vid card drivers

 

[Blakhart]

In device manager, does it show any problem devices?

 

[allprobmc]

i havent checked there yet, will do once i cant get to the computer, she went on vacation fight after i built it and havent been able to look at it since, 2 more days and i can get to it :/