What kind of graphics card do you have? (Radeon 9800 pro, Nvidia 7800 GTX etc.)
It sounds as if your missing drivers for your graphics card, and that windows is running the resolution, which is poor settings.
Also, is this a new problem? Or is this the first time that you've hooked up to this lcd tv?
Sorry for all the questions, but more information would be help us help you
War produces veterans, wounded both physically and mentally. They have sacrificed for us.....and it is now our job to help these veterans, as they have already helped us in ways we will never know, in ways that we cannot fathom, and in ways that we take granted every day.