[Samba] samba pdc issue

[Alessandro]

I'm going to inizialize the tdbsam database. I will set all the id 
manually, but I have another problem (again..):

#I set the new localsid like the old one
 >net setlocalsid S-1-5-21-649058289-4137629020-2208616966

 >net getlocalsid
SID for domain ACTIVENSA is: S-1-5-21-649058289-4137629020-2208616966

#then I add a ntgroup
 >net setlocalsid S-1-5-21-649058289-4137629020-2208616966

#I want to see what append
 >net groupmap list
qualita (S-1-5-21-4056997312-2459168463-1000019996-1006) -> qualita

...in fact:
 >net getlocalsid frigel
SID for domain frigel is: S-1-5-21-4056997312-2459168463-1000019996


'activensa' is the pdc hostname; 'frigel' is the samba domain name. 
Before they were the same, now they have changed and I can set only the 
first one.

How can I set the second one? I want to use the same users profiles on 
clients: is it necessary to have all sid like they were before, right?
 
Alessandro