The manuals listed below are for ONE user at a time only!  If you try to login and someone else is using it you will receive a message that you must try logging in later.  If you are using one of the manuals and finish, PLEASE LOGOUT!!  This will free the manual up for your fellow students.  If you do not logout, the manual will time out, but it will take some time.  Merely closing the window or turning off the computer does not log you out.  So remember LOGOUT WHEN FINISHED!!