Forwarding goes amiss?

[Mark]

Using BIND 8.4.1-REL, I'd like to add RBL style zone, like so:

zone "dynablock.my-domain.info" {
        type forward;
        forward first;
        forwarders {
                127.0.0.4;
        };
};

At 127.0.0.4, rbldnsd is listening (on a ifconfig alias of lo0), and
*working, as a dig @127.0.0.4 gives the proper responses. In the options
section I have this:

query-source address 192.168.1/24 port 53;
allow-transfer { can_axfr; };
allow-query { localhost; };
allow-recursion { localhost; };
listen-on {
 192.168.1/24;
 127.0.0.1;
};

So, "dig @127.0.0.4 177.64.161.195.dynablock.my-domain.info" gives me the
right result:

;; ANSWER SECTION:
177.64.161.195.dynablock.my-domain.info.  35M IN A  127.0.0.2

But "dig 177.64.161.195.dynablock.my-domain.info" does NOT:

;; AUTHORITY SECTION:
my-domain.info. 1D IN SOA ns1.asarian-host.net. ...

It seems BIND is not doing the forward. Can someone please tell me what I'm
doing wrong? I am very close; I feel it. :)

Thanks,

- Mark