I have a friend who purchased a new Lexmark printer/scanner that is using USB. He has a five year old Gateway that is running Windows 98 SE. The printer/scanner work fine. But the machine will not even start POST if the USB cable is plugged into the printer. Unplug the cable and the PC will start, but if you plug in the cable during POST, it will stop. Lexmark says that it might be the mother board may have a grounding problem. Has anyone else seen this problem?