Description of problem:
Up till last week I have been able to start applications that requires
root privilegies as normal user, the program just asks for the root
password in a nice requester and remembers that I have root
privilegies for a period of time (showing those nice little keys in
the notification area). However suddenly this behaviour has stopped.
Nothing happens when I try to start those applications.

Version-Release number of selected component (if applicable):
pam-0.77-38

How reproducible:
100%

Steps to Reproduce:
1. Log in as non root user
2. Try to start a program that requires root privilegies

Actual results:
Nada.

Expected results:
Ask me for root password and then start (supposing I give it the
correct password).

Additional info:
I get the following in my /var/log/messages each time I try this:
Mar 22 17:55:31 Datorn system-config-network(pam_unix)[2930]: auth
could not identify password for [root]

Also tried downgrading pam to 0.77-36 (which has worked before), but
it doesn't do any good, so I'm not sure this has with pam to do at
all. Don't know where else to file it though...