Got a monoprice MDP->HDMI adapter from about 1.5. When I hook it to my 2011 MBA, the video connection goes black about every 8 seconds on the TV, and there is no option for audio in the MBA system preferences. I tested the same cable and adapter on a different 2009 MBP, worked fine (minus the audio which it doesn't support). Why would the MBA have problems, with what I assume is a better video card? Is it the TB port requiring a different adapter?