Ok, I'm using Windows Xp Professional, everything it set to it goes to the Welcome Screen and so Fast User Switching is enabled, but it doesn't let me. Usually when you press the start key + L it goes to the welcome screen so you can switch users. Now my computer goes to some screen saying "This computer has been locker, only the administrator can unlock it". I am the administrator!! It says to unlock it just type in your password, so I do, it goes back to where I was before, I press start key + L and it goes back to that stupid screen saying the computer has been locked. Anyone have any idea on what's going on and what I can do to fix it?