i jsut bought a new 80gb hard drive from WD. I installed windows xp professional. However it could not detect the video card i have in the computer (geforce 6600 256 mb). And the monitor was plugged into the vid card. so everything was all choppy. What si wrong and what can i do to fix it? Do i need ot download something? I don't have the cd that came with the card. It broke. Help.