http://www.eventid.net/display.asp?eventid=16650&source has some info. If
you would be so kind and explain your problems we could provide more help.
Are you getting this after restoring RID master from backup ? run dcdiag
from support tools and post your results.
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Regards
Matjaz Ladava, MCSE, MCSA, MCT, MVP
Microsoft MVP - Active Directory
(e-mail address removed), (e-mail address removed) http://ladava.com