Need help with DNS behind firewall

[Casper Doppen]

I've set up a DNS on my LAN (domain ???.hme). De DNS has IP 192.168.1.3
The Gateway/Firewall has IP 192.168.1.1, and is using a ppp-connection
to the internet.
Some workstations on the LAN are Windows95 systems. It all works when I
have the DNS's set up in de network properties to look first for an
external DNS (for example 1.2.3.4) and second for 192.168.1.3. But this
way all requests for LAN-addresses are also sent to the external DNS,
and that's what I do not want (.hme is not a registerd domain, just
local).
I would like to have set up 192.168.1.3 as only DNS for all
workstations. If the DNS doesn't know a requested name the DNS should
contact the external DNS (1.2.3.4).

I tried this :

/etc/resolv.conf:
nameserver 127.0.0.1
nameserver 1.2.3.4
search debian.hme slack.hme.xterm.hme win.hme hme

/etc/named.conf starts with :
options {
             directory "var/named";
             forwarders { 1.2.3.4; };
             query-source address * port 53;
};

With this configuration I am able to surf on the internet with this
machine (192.168.1.3) because of the second line in resolv.conf. But
when I start nslookup and ask for external URL's I get the message
"localhost can't find [URL]: Non-existing host/domain".

Does anybody know what I am doing wrong ?
Please reply to ng and email.

Thanks,

Casper