Where the value you're looking for is the IP under the ;; ANSWER SECTION.
A return value can have many results, which should all be displayed if the domain resolves to more than one place.
If you get a blank IP in the result, it would imply that the nameserver is responding, but the domain in question is not on that server, and recursive queries are disabled. (we don't want recursive queries enabled)
If you cannot connect at all ensure that "named" is running, and port 53 for both TCP and UDP are open in your firewall. Add the option +tcp or +notcp to explicitly test TCP and UDP, respectively. Lookups will usually be using UDP if not specified.