@ibsteed it is possible that you have a bad LCD or a bad GPU. Attach an external monitor. If an image shows on that you know that you are having issues with your LCD. If it does not show, than you are having issues with the GPU. you also want to check to see if it is your backlight that has failed. In a dark room with the computer running, shine a flashlight at an angle against the LCD. If you see any images than you know that it is a backlight issue. This computer still uses an inverter board that may have failed. You can download the service manual for your model [http://www.hp.com/ctg/Manual/c00444244.pdf|on here]