Beyond frustrated right now. Whenever I connect my mac to my tv settings change. It's perfect than I don't use it for a week new problem. So what I don't get. I have all the settings right - 720p for the tv, set on DVI PC, and yet the full screen isn't always full. And when you look at the macbook itself it has HUGE black bars on the bottom and top even though it's almost full on the TV screen. I want both my laptop and the tv to have full screen. Mirroring displays seems to do this, but it can't get it just right. What am I supposed to do with this option? You drag the mirrors around but what is the position that will make sure both laptop and TV are full screen?