In the process of installing my new video card for my computer (Emachines T3092) i disabled the onboard video, which was fine because I had just installed the new video card. The problem is when i rebooted the machine I found that the computer now seems to not be recognizing either video outputs leaving me with a blank monitor no matter which video jack i plug the monitor cable into. I have no idea how to fix this problem when I cant see a thing on the screen. Please help.