samba - Dec 2013 - Samba 3 Domain Member Server - wbinfo does not return all groups

I'm trying to setup a Samba member server that will
use my Samba PDC for authentication.  Everything seems to
check out, but running 'wbinfo -g' only returns the following:

domain users
domain admin
domain guests

The rest of the groups are not returned.  However, 'wbinfo -u'
seems to return the correct list of users.

What am I missing?  Thanks in Advance

Here is the basic info from my setup:

Samba version: 3.6.9-167.el6_5
Winbindd version: 3.6.9-167.el6_5

smb.conf:

security = domain
idmap uid = 16777216-33554431
idmap gid = 16777216-33554431
winbind use default domain = true
winbind offline logon =  false
winbind enum users = yes
winbind enum groups = yes
winbind separator = +
wins server = w.x.y.z

nsswitch.conf

passwd: files winbind
shadow: files
group: files winbind
hosts: files wins dns

-- 
Marco J. Shmerykowsky P.E.
marco at sce-engineers.com