Ok, here is the deal. I got a new GForce DDR last week. I got rid of my TNT, put in the GF and things worked great until....I reformatted my HD and reinstalled windows. I have the newest drivers for everything, and the patches for everything. Problem is, I can't play any 3d game. They all lock up. Q3 locks up at the main menu. I took out my soundcard to troubleshoot, still, I get nothing.