If my PC is powered off, and my new scanner is connected via parallel cable, when I power the PC on there is no video signal, and no system board beep. The scanner causes some kind of interference with the system board initializing at a cold bootup. However, if I turn off the scanner, or unplug the parallel cable, then reconnect it after booting up, the scanner works fine. I connected the scanner to another PC and had no problems at all, so there's definitely something up with my system board. A printer works fine on my machine, though. Has anyone ever seen anything like this?