I seem to have lost my video card. The device manager is only showing the onboard card and not the PCIEx. Could this be a driver issue and should I try to install drivers for a missing device? I dont have the cd with the VC drivers, so I would need to open the case to see what kind of card it is? Do I have to use a disc to reinstall the drivers? What will happen if I disable the onboard card and/or uninstall its drivers? And if it cant see the device does that mean it is malfunctioning?