[Samba] domain SID not changing

[Lorenzo Cerini]

Hi,
i wish to change my pdc server in a transparent way to for everybody.
Since we grew up a lot in number i would like to move from smbpasswd to ldap.
Now everything is fine, just i'm not able to change the domain SID of the new server to
match the old one.
I tried net rpc getSID and tdbtools, but everytime i restart smb, the SECRETS/SID/MYDOMAIN
go back to the previous value.
Any Idea?
Thanks,

samba 3.0.21
opensuse 10.0

L.Cerini