samba - Sep 2003 - smbldap_open: cannot access LDAP when not root

Hi !

I though I solved my "add users to the doman admins group" by chmod 
/usr/local/private/secrets.tdb to 644, but in fact I still have the same 
problem.
For now, I'm concentrating about something that's in my log file:

[2003/09/15 17:39:53, 0] passdb/pdb_ldap.c:ldapsam_search_one_group(1634)
   ldapsam_search_one_group: Problem during the LDAP search: LDAP error: 
  (Insufficient access)smbldap_open: cannot access LDAP when not root..
[2003/09/15 17:39:53, 1] lib/smbldap.c:smbldap_retry_open(888)
   Connection to LDAP Server failed for the 1 try!
[2003/09/15 17:39:53, 0] passdb/pdb_ldap.c:ldapsam_search_one_group(1634)
   ldapsam_search_one_group: Problem during the LDAP search: LDAP error: 
  (Insufficient access)asteinling (172.16.20.31) connect to service 
ajacoutot initially as user ajacoutot (uid=10000, gid=513) (pid 756)
[2003/09/15 17:39:54, 1] smbd/service.c:make_connection_snum(692)
   asteinling (172.16.20.31) connect to service netlogon initially as 
user ajacoutot (uid=10000, gid=513) (pid 756)
[2003/09/15 17:39:55, 0] smbd/nttrans.c:call_nt_transact_ioctl(1831)
   call_nt_transact_ioctl(0x90028): Currently not implemented.

What does this mean ? Domain logons work great, so ldap access does not 
look like it is a problem.

If you have any idea...

Antoine