OK, hook up your monitor, and boot it up. change the display settings to the lowest setting. Now move it to the LED. does it work? If not, then hook back to monitor, and set the display to the highest resolution, and make the connection back to the LED. If it still does not display, your video card is not capable of producing a a resolution that your TV can display. Reffer to your TV specifications to see what the settings range is for VGA.