moe, the first thing I'd do is to attach it to an external monitor. If the external monitor comes on, it is something with your LCD. Could be the cable, the inverter or the LCD panel itself. If the external monitor does not work, you are having issues with your video card, which is an integrated part of your motherboard. You can download the service guide [http://h10032.www1.hp.com/ctg/Manual/c02985882.pdf|from here] and it should help you with your laptop. Hope this helps, good luck.