I have an older AMD K6 computer with windows 98 and an FX5200 graphics card. I want to be able to boot up the computer with no video cable connected and then after the computer has started windows, connect the monitor via VGA cable. My problem is that when I connect the VGA cable after startup, I get no video. Is there a setting that checks for a monitor connected or can I trick the computer to think there is a monitor connected?