We just bought 28 new iMacs for our school. All of our users (teachers, students, admin) have a login name on our server. On our previous computers, at the login screen we get a list of all users as well as the admin on the computer. How do I get the users to come up on the new iMacs? The only choice I get for a user is the admin (t1, t2, etc). Thanks so much in advance for your help.