I'm trying to load a new OS on an old computer of mine (appx. 5 year old). Well, I set everything back up, but when I turned the computer on it seemed like it was working ok, but the moniter acts like its not even plugged into the computer. I tried using about 3 different moniters (including the one I'm working off of right now), but all gave the same results. I know everything is plugged in where it's supposed to be. Any help would be appreciated.