Check your TV to ensure the screen is not stretched out of native aspect ratio, zoomed or cropped. As another member suggested above, UPDATE your graphics drivers, you can do this from here for AMD drivers AMD Graphics Drivers & Software and here for nVidia drivers: Drivers - Download NVIDIA Drivers Also, how big is your TV and what ratios does it support? 1280x720 tells me it's smaller than 50' and only supports 720 resolutions. See if 1360*720 or something similar is available.