A customer brought a HP G62 laptop with a video issue. It was displaying a light blue tone on every background where it should have been white. Also the pixels were randomly turning on and off.
The funky discoloring initially looked like it could have been a virus. Knowing about the problems that plague the DV6000 and DV9000 HP laptops, it was possibly a video issue.
I disassembled it down to the board and discovered there wasn't a visible GPU. The processor has two dies on the chip to possibly indicated integrated graphics.
Perplexed I put it all back together and discovered the problem has fixed itself. The cable coming from the LCD screen was apparently loose from the board and was causing the glitch.