I have and HP 1232nr DV7 I had the computer going on about 2yrs. I have physically used the computer for about a year. Turned it on and the screen was black. I got power to the laptop but nothing on the screen. There is a light on the caplock and number lock that blinks 4 times. With a little research, it was determined to be the graphic card not functioning properly. With a little research it was determined that this is a common problem with the DV series. If HP knew of this problem, how come it was not corrected???? I am a freelance graphic artist and use the laptop for all of my work!!