[Samba] BUIILTIN accounts with Samba 3.0.24 + LDAP

[Justin Zipperle]

I'm having a problem with BUILTIN accounts on a Samba 3.0.24 PDC with an 
LDAP backend on Ubuntu.  I followed this guide for setting up the server:

http://samba.org/samba/docs/man/Samba-Guide/happy.html

...and everything worked well until I migrated all the user, machine, 
and group accounts from the old domain and the PDC went into production 
this morning.  Once the machine went live, I started to notice that 
there were significant delays when connecting to shares or viewing 
security on files or folders within shares from WinXP Pro SP2 
workstations.  When viewing security, certain builtin accounts (Domain 
Users, Domain Admins, etc) wouldn't resolve to their DisplayNames and 
would instead show the SID...this after much delay.

I've reindexed LDAP w/ slapindex thinking this was part of the problem, 
but it had no effect.  I can see all of the BUILTIN accounts using net 
groupmap list and getent group, but I don't see them with net rpc rights 
list accounts.

Any idea what I may have changed that broke this?

-Justin