Why does DVI make my computer crash, and scramble the screen on another computer? I had a loose connector on one computer, and the screen went flashing on and off and made my computer lock up after a while. I changed the videocard in that computer to see if the same thing happened, and I changed it for a 9800xt. It made my screen look scrambled and as if I clocked it too high... Another computer of mine crashed while I connected and disconnected the dvi cable as well. What's up with that?