This video shows step by step process on how to fix the dreaded Black Screen of Death on your HP Laptop. This appears to be a common problem on the internet forums. The symptoms are that lap top will not show any activity on the blank screen, yet the fan and some of the led's on the keyboard blink and light up. Fixing this problem saved me from having to buy a new laptop computer, and also saved me lots of money.... ;-) best of Luck