I have a well established w2k network and have just prepared it for 2003. However I have now tried to bring online two 2003 servers and have experienced the same problem. I seem to be loosing the host records from the w2k DNS server for both the 2003 boxes.
This I can confirm as Nslookup does not find the new 2003 boxes, and when I look in the w2k DNS the host records are missing. If I restart the 2003 boxes then DNS is registered again, this is also the case if I run ipconfig /registerdns on the 2003 boxes. I would appreciate any suggestions on this.