"I have comprised a system by means of an Nvidia GeForce 7600GT video card. It has two DVI associations. I encompass a Maxent HDTV that in addition has a DVI in correlation. To utilize the Maxent as my monitor I plugged the DVI cable into my video card and then into the backside of the TV. I revolutionize the input to DVI and the entire I get is a blue screen that says "no signal input". What might I be missing?"