I recently had to demote and decommission a server that was a domain controller and the primary DNS Server. I set up another server in it's place. I believe that I have made all of the necessary changes on my windows network to reflect the new server's IP address. However, Exchange is still experiencing problems. When I run a best practices scan, it tells me that my DNS Host record apprears to be missing and gives me steps on how to resolve. It also tells me than my primary DNS failed to repsond which is being caused by the same problem. Since the error in the report is displaying the old IP address, and I've removed DNS from that server, I need to know how to make Exchange 2003 look at my new DNS server. Any advice?