Hello,
I have a laptop with Fedora 16-x86_64bit installed.  One day last week I noticed that I was not required to enter a password to log in from the graphical screen. For example, when I click on my username from the GUI the system logs me in immediately without requiring or prompting me to enter my password.   This is true with all users and when using both Gnome and KDE desktops.  I have searched everywhere I can think of and can't seem to find a post describing this issue.  I have verified that auto-login has not been configured in either Gnome or KDE.  I have also made sure the "Enable Password-less Logins" is not enabled in the System Settings/Logins/Convenience tab.  Strangely enough, if the screen saver kicks in I have to enter a password to unlock it and if I switch to a textual session (Ctrl+Alt-F3 for example) I have to enter both username and password to login.

Does anyone have an idea how to re-enable the need to provide a password from the GUI or where I should begin to look for the problem?

 tks