My notebook started doing this, as well within the last month. My guess is a short in the ribbon cable to the screen. The computer this is happening on is a Compaq/HP cheapo from Wal-Mart. Anyone have any ideas on how much it would cost to fix?
Right now I am essentially using it as a desktop, hooked up to an external monitor.
EDIT-This computer is 2-3 years old. Will post the model number later, if relevant.
If it really is a 3 year old, cheapo, Compaq from wal mart I am amazed that it has lasted this long. Time for a new one unless you just want to keep using it as a desktop.