Login screen

[António Rui Borges <ruib det ua pt>]

Hi! Could somebody help me on this.

I have just installed Fedora 14 and added some users.
The login screen when the system boots presents the full list of these 
users.
How can I prevent the list from appearing?
I remember that in versions up to Fedora 8 an application was provided 
that enabled the configuration of the login manager.
Is this kind of application still available or the configuration is done 
now in a different way?

Thanks

António Rui Borges