samba - Mar 2003 - Samba will not tell win xp about the groups it hosts

When trying to add the Domain Administrators group to my win xp box I
got the following message
 
An object named "S-1-5-21-3159134263-2594277444..." cannot be found.
Check the selected object types and location for accuracy and ensure
that you typed the object name correctly, or remove this object from the
selection.
 
I have followed all the docs I can find for making windows xp talk to
samba registry is patched.  Win xp will find my users but not groups.  I
am using samba-3.0alpha22 with LDAP as a passdb backend.  Do I need to
do something with LDAP??
 
Jeff Means
meaje@meanspc.com

---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.463 / Virus Database: 262 - Release Date: 3/17/2003