Hello, My Toshiba Satellite boots up fine, I see the logo, have even gotten as far as seeing my desktop sometimes, but then the screen flickers and goes black. I noticed it flickering some when it was working properly, before this started happening. I can see things, if I look hard enough, even though the screen is black, so I know the computer is up and running. What can I do? have already tried the "remove batter, hold power button down for a time, reinstall battery, etc. fix, but that did not work for me. Help!