hello!
I've recently encountered an issue where (example) below dns record cannot be resolved by any 2003 DNS server (we have a mixture of 2003 and 2008, all running DC role as well). I can query that without any problem from windows 2008.
example of query that fails on 2003:
www.securitybsides.com
DNS architecture is very simple. All external queries are resolved by root hints, and all servers have same root hints configured.
any ideas? do you also encounter issues while trying to resolve this address from w2003 DNS ?