How to configure Failed RID master in Windows 2000 SP4 DC?

Question

We are still using windows 2000 SP4 server due to application compatiblity of our core application, this error has occur during a fire here in our office then the physical server itself, migrated to our DR site, then after that event the physical server
itself join again to its original place where as, in H.O branch.
First Problem:
Now our branch office site users always fails to log to their workstation, we still need to reset their password again and again after the day ends , and it will come back again tomorrow.
Second Problem:
When we are adding a user account it always say's "Windows cannot create the object because the Directory Service was unable to allocate a relative identifier" it predict that the RID master has been corrupted because of the migration
from site to site,
Can I still have answers here even though this is way way to obsolete from microsoft, I need help please :)

Answer 1

Hi thanks for your kind reply,
No, there are 4 DC in our environment but the forest root DC has the problem, I only create user accounts, I still not creating other object in active directory.and also the replication between root DC and other DC has problems. but I think its in the DNS
part, just need step by step process. :)
I'll give it a try on what you suggest but is this tried and tested? because when you replicate from corrupted FSMO roles DC, the new DC will also infected with errors, 
By the way I already tried ntdsutil to fix the AD database and all are passed.