we've been running a Matrox RT.X2 on Windows 7 for a couple of years. Over time boot up has been slowing down. Yesterday when I tried to turn on the PC, it would not boot up: It kept trying to boot, but when it gets to the end of he pre=boot sequence (before the "loading windows" prompt, it restarts to the beginning. When I disconnect the Matrox RT.X2 breakout box from the back of the PC, Windows boots up (and 10X faster than I've seen in months). If I reconnect the card, windows will not boot. Any ideas?