Update: The problem was solved but strange, I don't see why or how almost all of my computers drivers were deleted. My computer was working fine yesterday night then I turned it off and went to sleep. This morning I turned it on to find that the resolution was completely off so I went to check...
So I just got a brand new computer and hooked it up to my HDTV but the sides of my screen are cut off. I need help finding out how to fix this. Here's a pic: