Hi,I read the forums here ,and one poster said to check your video setting to make sure it was correct. I switched to one setting and hit ok and it loaded everything a lot bigger than normal including the yellow loading bar. When it loaded everything was too big ,and when I checked for the place where you select all to get all your channels it wasn't there to be selected,So I went back to what I thought was the original setting I was on .Now when I pull the plug to rest it where it goes to loading and then loading portal. It shows it is loading ,and never goes into the second stage where it says loading portal,and then the yellow bar loading. It now just goes from loading ,and then after a short bit it just shows a black screen on the tv. This was the only setting I touched. What do I need to do to get it to go back to the full loading phase. It won't let me in to adjust the setting back. Just loading ,then black screen. Thanks