I recently bought a Dynex (Bestbuy brand) Minidisplayport->HDMI adapter and this does not work on my 15" 2010 MBP. The screen will flicker blue but there won't be any displays available in the display panel. I tried this on my 46" Samsung LCD TV and my 23" LG Monitor (Both are 1080P). If I use my MDP->VGA it works fine. Any suggestions would be greatly appreciated