I'm using windows XP home. Computer starts up, gets to the "Welcome/User Name" screen, I click on my user name and then it says "saving your settings" and shuts down. Well, it doesn't shut down, it just stays at the user name screen. Sometimes the screen goes blank then it says "logging off" then goes back to the user name screen. I've tried to start in safe mode then log in to the admin, safe mode with command prompt and it just does the same thing. Good thing the laptop is up and running!