using ADMT version 3.1
source domain: SBS 2003
destination domain: Server 2008 Standard Edition
users and groups migrate fine.
computers = not so much
migration log looks fine, but "agent detail:" has this:
"2008-08-18 15:30:43 ERR3:7075 Failed to change domain affiliation, hr=800704f1 The system detected a possible attempt to compromise security. Please ensure that you can contact the server that authenticated you."