I have a Toshiba satellite C855D-S5315 it has a broken screen so I use a external monitor. There is a password on it (I keep trying to figure out how to get the Windows password to no longer be required but haven't yet). Sometimes it says the password is incorrect when you type the first letter of the password (without even giving you the chance to enter the rest of the password and the enter button). It did this two days ago (usually just restarting it will fix the issue... it did not work this time) so I ended up having to turn the computer off and then I tried to start it back up. Now all it will do is give me a black and white screen (the monitor is broken as I said before so it may have more on it but it is not showing up on the external monitor). It stays on for just a minute and then turns off unless I click on a couple of keys (any keys) then it will stay on but it will still not display on the external monitor. HELP please. This is my personal computer that I use for work and I cannot loose it or replace it.