Hi there, I have a DNS server running on Windows 2003 machine which is also a domain controller. In the reverse lookup zone, I have a PTR 10.0.0.23 pointing to oldhost.mydomain.com I could delete this record, but whenever I click "Reload", this record comes back immediately. The oldhost.mydomain.com was a Linux machine, and was not in the Windows domain. I don't use this machine anymore. Any idea about this issue would be appreciated. Ross