I just got a 40" Coby 1080p HDTV and for the first week everything looked amazing on it. Then one day I tried to hook up my PC to the TV via a S-Video to composite video cord. Although my computer was set to 1920x1080 the display on the tv was limited to 1024x768 which means the TV only showed a portion of the screen. I assumed this was because svideo/composite can only go up to 1024x768 resolution. So I unhooked the cords connecting my pc to TV and just decided to play on my xbox. There I noticed the graphics were noticeably worse then they were just a few hours earlier.
So what happened when I connected my PC that made my TV get stuck at this lower resolution and not show the graphics that I paid for? It seems like my cable is blurry and the xbox is producing horrible jagged lines now. PLEASE HELP