messed up DNS--can I simply uninstall and reinstall

System: 1 MS server 2003 with AD, DNS, small office of 3 users, server has ms sql, but otherwise just a file repository--users connect to internet via router directly. Setup was done by someone else and I am taking over --still learning

I want to activate the vpn, but server had a power failure twice within a couple of days and now DNS errors are coming up as follows:

in the event log:

netlogon 5782
Dynamic registration or deregistration of one or more DNS records failed
with the following error:
No DNS servers configured for local system.

********************************
netlogon 5722
The session setup from the computer WOOD2 failed to authenticate. The
name(s) of the account(s) referenced in the security database is
WOOD2$. The following error occurred:
Access is denied.

***********************************
DNS 4004
The DNS server was unable to complete directory service enumeration of
zone XXXXXX.local. This DNS server is configured to use information
obtained from Active Directory for this zone and is unable to load the
zone without it. Check that the Active Directory is functioning
properly and repeat enumeration of the zone. The extended error debug
information (which may be empty) is "". The event data contains the error.

I ran the following and I have the logs if interested:

Dcdiag.exe /v >> c:\temp\pre_dcdiag.txt

Netdiag.exe /v >> c:\temp\pre_Netdiag.txt

Netsh dhcp show server >> c:\temp\pre_dhcp.txt

Repadmin /showreps >> c:\temp\pre_rep_partners.txt

repadmin /replsum /errorsonly >> c:\temp\pre_repadmin_err.txt

BUT the real question is can I simply remove the current DNS role and restart it --I did find this--would this help?

-convert dns to primary zone (uncheck integrate with active directory)(how?)
-remove dns in configure your server
-remove dns folder from system32
-in system32\config remove netlogon.dnb and netlogon.dns
reinstall dns (configure your server) with the correct zone name

then at the command prompt:

ipconfig /registerdns
net stop netlogon
net start netlogon

Thanks for any help.