LDAP not recognizing old user profiles

[Joe Pluta <joepluta@xxxxxxxxxxxxxxxxx>]

Our development machine has user profiles on it that were originally 
created several years and OS releases ago.  Many of these have never 
been used, but sat there nicely.  Recently I configured the LDAP server 
(a/k/a Tivoli Directory Server) on this box and I've run into a weird 
situation: even though I can use these user profiles to sign on, the 
LDAP server refuses to recognize them.  I get a GLD0120 error no matter 
what I try.  If, however, I copy the user profile to another profile, 
the new profile works fine.  Stranger yet, if I delete the original, and 
then copy the duplicate back to the original name, the copy of the copy 
(with the original user ID) works just fine.

I think I've checked everything, including authorities, but I can't see 
any reason why the profile is getting rejected, except that it is old.  
Other old profiles have the same symptoms.  Maybe something changed in a 
release and the upgrade didn't quite take hold?  Has anyone seen 
anything similar, before I open a PMR?

Joe