dovecot - Feb 2007 - Dovecot authentication problem

Hi all,

New SUSE 10.2 install, Sendmail, dovecot 1.0.rc14-7 SUSE rpm.  Was using PAM
for authentication.  Worked like a champ since Feb 7th.  No changes to
system.  Yesterday authentication failed.  I can't even authenticate locally
with "telnet localhost" options to test pop3 or imap.

It appears that my pam authentication has somehow gotten changed.  Can
anyone direct me to some PAM debugging help?

Thanks, Marion