dns woes - resolved

[David Banning]

As it turns out - following a new installation, named.conf is
in /var/named/etc/namedb with a symlink from /etc/namedb.

To keep all my original DNS records and settings
I had restored a backup to /etc/namedb which destroyed the
symlink - as a result when I altered /etc/namedb/named.conf 
named didn't see the changes because it was reading named.conf
from another directory.