How to Quit
When you're finished looking around for the first time, you can log out to quit your session (see Figure 2-5).
When you log out, you'll be returned to the opening screen you found when your system started.
To log out, just go to the Main Menu Button on the Panel, left-click once and select Log out.
You'll be presented with a box, asking you whether you want to log out. Select Yes.
After a few moments, you'll be returned to the log in screen.
Summary: At Login - type root. At Password - type yourrootpassword. To quit - Left-click on the Main Menu Button => Log out => Yes.