DNS server service won't start - issue with service account configuration

I have a Win 2008 R2 domain controller running DNS.  The DNS service stopped running yesterday and will no longer start.  The error is 1297: "A privilege that the service requires to function properly does not exist in the service account configuration."  The DNS service is logging on as the domain administrator account.  I'm a bit concerned about the root causes of all of this unpleasantness but primarily would like to know what privileges are missing which would allow the DNS service to start properly.
SmaxeyAsked:
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Natty GregIn Theory (IT)Commented:
Check the dhcp, to make sure the DNS is authorized, sometimes for strange reasons the dns server becomes un authorised
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SmaxeyAuthor Commented:
Thank you for the suggestion.  I did have to update the credentials for dynamic DNS update by DHCP, but, unfortunately, the DNS service still won't start.
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it_saigeDeveloperCommented:
Your DNS service should not be running using the domain administrator account and the DNS service does not need such elevated permissions.

The DNS service *by default* uses Local System.Capture.JPG-saige-
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SmaxeyAuthor Commented:
That was it.  I don't know who had made the change on this server, but once I switched it back to local system account, DNS started right up.  Thank you!
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Windows Server 2008

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