XP Local Group add prblem - Object Picker Incomplete

[PHELPS, SCOTT]

First of all sorry for having to cross-post here, but I got no response
on the main list.  I just subscribed here, so here I go...

I have successfully and seamlessly merged my NT Domain from a Windows
PDC to a Samba PDC running 2.2.8a.  All the logins, machine accounts,
and RIDs/SIDs were successfully cloned by me to an LDAP backend.  I even
kept the profiles.

I've worked out most of all the little issues that cropped up, but this
one has me totally stumped:

Here's the situation.

I've got a suXP Pro box with SP1 on it that whenever I try to add any
'domain_user' to any 'local_group' it gives me the following error
message:

"Information returned from the object picker for object "<username>" was
incomplete.  The object will not be processed."

A couple notes:
1. This is not a problem on Windoze 2K or NT - it works all day.

2. I have fixed the three relevant Registry keys:
(HKEY_LOCAL_MACHINE\SYSTEM\ControlSetXXX\Services\Netlogon\Parameters\re
quiresignorseal = 0)
(HKEY_LOCAL_MACHINE\SYSTEM\ControlSetXXX\Services\Netlogon\Parameters\re
quirestrongkey = 0)

3. I also changed the following Group policy to 'enabled':
Computer Configuration\Administrative Templates\System\User Profiles\Do
not check for user ownership of Roaming Profile Folders

4. The XP box is a domain member with a machine$ account.  It has Domain
Admins in the Local Admins Group, as well as Domain Users in the Local
Users Group.  If I add the user to the 'domain admin group' on Samba she
does inherit Local Admin rights.  So every thing is working fine
**except** the ability to add a user specifically from the Domain to the
Local Group!

4. I have Googled for days, and nobody has come up with an answer in
previous postings.
FYI: 
An example search....
http://www.mail-archive.com/cgi-bin/htsearch?method=and&format=short&con
fig=samba_lists_samba_org&restrict=&exclude=&words=object+picker+

If there is anyone out there who is able to add a Domain User to a local
Group on an suXP Pro box, please contact me.  I would like to know what
you did (or didn't do).

Thank's!

--
Scott


Scott Phelps
Regional IT Manager
Ridgway's, Ltd.
Virginia Beach, VA  23462
757-490-2305