I just got my Sammy HDTV/Monitor, which is a 23" 1080p HDTV. However, when I connect my MBP via my mini-displayport to HDMI adapter, the screen gets cut off on the top and the bottom. I have tried to switch the resolutions from 1080p to 720p, but it still does the same thing. It gets off both when I use the external as a secondary monitor and when I mirror the displays and use it as a primary monitor. When I turn overscan off in System Prefs, the 1080p image shrinks and there are black bars around all sides (however, it does show the entire screen). Does anyone know how to fix this? I want to get the most out of my recent purchase, and I know this is possible because I've seen it. Thanks.