[Samba] SMBLDAP tools reports "modifications require authentication at /usr/sbin//smbldap_tools.pm" but manually command works.

Fri Mar 26 13:27:02 MDT 2010

Every time I try and join a Vista system to the domain I get this error
in the log:

[2010/03/26 15:18:58, 0] smbd/service.c:make_connection(1191)
  april (192.168.1.194) couldn't find service public
Error: modifications require authentication at
/usr/sbin//smbldap_tools.pm line 1083.
[2010/03/26 15:19:16, 0] passdb/pdb_interface.c:pdb_default_create_user(329)
  _samr_create_user: Running the command `/usr/sbin/smbldap-useradd -w
"april$"' gave 1

But when I run the command above manually it works fine:
evoserver ~ # /usr/sbin/smbldap-useradd -w "april$"
Cannot confirm uidNumber 1014 is free: checking for the next one
Cannot confirm uidNumber 1015 is free: checking for the next one
Cannot confirm uidNumber 1016 is free: checking for the next one
Cannot confirm uidNumber 1017 is free: checking for the next one
evoserver ~ # /usr/sbin/smbldap-useradd -w "april$"
/usr/sbin/smbldap-useradd: user april$ exists

What could be the difference from what Samba does and what I do?