samba - Oct 2004 - Ms SMS installation with a samba 3 PDC

Hi, 

I would like to know if someone already managed to successfully install and 
use MS SMS on a network controlled by a samba3 PDC ? Is there any workaround 
available, even non-official ? My problem is that when i give SMS a network 
username (admin) it says the PDC may be down, or the user doesn't have the 
rights needed for the installation and management of the network. 

Arnauld