Resolver problems (with certain sites - bad root server/named.cache?)

[Anil]

I am trying to resolve some address but for some reason I am unable to do
so. When using another
DNS server to resolve it works fine.

bash-2.01$ nslookup - ns1.entic.net
Default Server:  shell.entic.net
Address:  209.157.122.66
Aliases:  66.122.157.209.in-addr.arpa

> www.systemv.com.
Server:  shell.entic.net
Address:  209.157.122.66
Aliases:  66.122.157.209.in-addr.arpa

*** Request to shell.entic.net timed-out

bash-2.01$ nslookup www.systemv.com
Server:  localhost
Address:  127.0.0.1

Name:    systemv.systemv.com
Addresses:  199.35.37.1, 199.35.37.2
Aliases:  www.systemv.com

Note: ns1.entic.net is my primary and that is the one that is having trouble
with. The shell I was using to test this was on another server outside of my
LAN.

Thanks.