This is what DVI should look like on your PC, should you have it:
Under nvidia's control panel, I would look around for anything that has "Resolution" in it. I believe the resolution you've set on the computer for the LCD isn't the LCD's native resolution. If you can, try changing the resolution for the LCD to something like 1280x720 (this is for 720p LCDs), or 1920x1080 (this is for 1080p LCDs) under nvidia's Control Panel.
Edit: I'm not sure I understand you. Are you saying the view on your computer monitor is messed up, or the view on your LCD TV? Either way, that can be fixed by changing the resolution, if I'm not mistaken.