I ordered this because my father's laptop has a VGA input. I figured it was as simple as buying an adapter (this) and plugging in a DVI cable to the other end and then I'd have a 2nd monitor/tv or whatever - after days of trying to figure out why this wasn't working I found out some interesting information.VGA = AnalogDVI = DigitalThey cannot be combined. That's why this adapter is useless, the concept of a digital/analog adapter is an oxymoron.