My VGA port on my pc is not working, the cable and monitor I am using both work fine as I use them on other computers. Im trying to set up dual monitors as I already have one monitor plugged in via the DVI port with a DVI to VGA adapter as it has never worked. When i plug in the VGA to the monitor my pc doesnt even recognise that its there, is there some way I have to enable the port or is it not connected properly inside?