Windows freeze at startup after installing graphic driver

[OOEide]

I have just built my own computer with these specs:

Mainboard: MSI 890FXA - GD70
Motherboard: ASUS P5N - D
RAM: 2x Corsair Dominator 4GB RAM (8GB)
Graphics: 2x Ati Radeon HD 5800
Processor: AMD Phenom(tm) II x4 965 Processor 3.40 Ghz

I installed windows and updated it. Everything seemed fine until i installed the drivers for the graphic cards. Everytime i reboot my computer it freezes at the "starting Windows" screen with the pulsing Windows logo. The startup repair tool doesn't work and i have to reformat Windows or loading an earlier system image to get it to work again. Any suggestions to how to solve it?

 

[crewton]

Which drivers did you use for your cards, from the cd or from amd's website? I would uninstall the driver and let plug and play install them for you. then go to amd to download the latest drivers. I