Nimue 0 Newbie Poster

Hi. I have an Alienware Area 51 M5550 laptop with NVIDIA GeForce GO7600 256MB graphics card. I had it running ther other night, went away, came back later and found it had a black screen. I tried rebooting. I get the Windows logo and then a black screen. You can hear it is booting up, but just displaying a black screen. It works in Safe Mode in VGA mode okay, but not in normal. Does anyone have any ideas?