I used to be able to attach my old USB scanner inside the virtual XP Mode PC. Now it will not show up under the USB attach/detach button. Outside the virtual PC under Win 7 ultimate, it shows up in device manager as unknown device. The scanner does not have a driver for Win 7 (I know this). So I used to be able to scan in the XP mode. I have uninstalled the host USB controllers and restarted the PC twice in able to get all the USB devices reinstalled. How can I get this old scanner to show up again inside the XP Mode?