So I screwed up the resolution on my Mac Mini on my HDTV and have no picture...help!

The other day I was using Switchresx to try and get a native 1366x768 resolution on my Mac Mini hooked up to my Magnavox LCD HDTV instead of the stretched 1280x768 that it was giving me. Somehow I messed something up and I now only get a black screen saying "Unsupported" on the TV. I can hook the MacMini up to any other moniter and get an image but I somehow can not get an image on the Magnavox. The grey startup screen shows up when I boot on the Magnavox and then it goes to no image. Is there a moniter profile I can delete or something to get the image to show on the TV again? I can access the Mini's HD remotely with my MBP so I have full control of the HD minus a screen. Please help!