Hi there. Ive got a Toshiba Satellite L50-B laptop. Practically new (about 2-3yrs old, but hardly used). The laptop starts up, but only dislays a black screen. I can hear the computer fans as there is a CD installed. The battery light is orange. Ive tried removing the battery (which displayed a white battery light), then reinstalled the battery (which displays the orange battery light again). Still a black screen though. Ive also tried plugging it into an external screen to no avail. Help!!???