Hi, I am upgrading my network machines to use Kerberos as the authentication method. The standard screen lock that comes with KDE uses kcheckpass to check the password presented to it, in order to unlock the screen. I tried to change my /etc/pam.d/kde, the file used by kcheckpass to use pam_krb5 instead of pam_unix.so. It's not working for some reason. I am using Debian Linux 3.0 with 2.4.6 kernel, and libpam-krb5 1.0-6. Thanks a lot. Sandeep