I was using my computer when it suddenly turned off and left a blue dump screen on the screen. It said that there was a stop error because some driver caused and infinite loop and the file that caused it was "nv4_disp" restart the computer. So i did. It started up and in the very first screen where it says DELL and a loading bar it now has random letters and number all over the place going up and down the screen in columns. When it gets to the Win XP loading screen the colors are all messed up and then before it goes in to windows desktop it crashes .Then I loaded into safe(so the graphics card drivers arent in use) mode with networking which is what im in now the colours are slightly wrong and when i move my cursor around it leaves a trail of random colour behind it. And there was an error saying there was an error with your GeForce 4 Ti4600 128Mb with TV out graphics card. I've tried a virus scan and I've tried using system restore but nothing fixes it. I've also tried uninstalling my graphics card downloading the new drivers from the dell website and installing them but that didn't help either. New direct X And I've made sure the card is in the slot properly. Please help!!