OS-X + LDAP + netgroups

[Steve Thompson]

clients: OS-X 10.4.9, Intel & PPC.
server: OpenLDAP 2.3.32, RFC 2307 schema.

I have some Mac systems getting authentication and automount information 
from an OpenLDAP directory with no problems. However, I have been unable 
to find out how to configure the Mac clients to read netgroup information 
from LDAP, and googling and reading Apple's documentation has not shone 
the light on this for me. If anyone out there has got this working, or 
knows that it cannot be done, I'd appreciate a nod in the right direction. 
TIA,

Steve