Ive been workin with this laptop because my friend has been having some connectivity issues with it. It has been working perfect for me until i recently turned it on and and the screen is just blank. it makes all the start up sounds when windows has loaded and what not. But all i see is a black illuminated screen. The screen isnt blank like there is no signal, but i can see the back lights are illuminated just desktop image or anything. Any help would be very much appreciated.