So I just received MonoPrice's MDP to HDMI adapter and am having trouble getting it to work. When I plug in the cable and turn on the TV, the screen goes blue for a second but nothing gets outputted to the TV. The thing is, is that the computer thinks that the display is working but nothing shows up. I know this because I can drag my mouse to the TV (it doesn't just stop at the edge of the window). Any ideas on what could be causing this?