problem delegating zones

[pvdb]

Helo,
I have some problems delegating a zone with BIND 9.2.2.

This is the content of my file /etc/named.conf
zone "obda.home" in {
    file "master/obda.home.zone";
    type master;
};

This is the content of the file /var/lib/named/obda.home.zone
$TTL 2W
@ IN SOA obda.home. root (
    200505061 ; serial
    2D ; refresh
    4H ; retry
    6W ; expiry
    1W ) ; minimum

IN NS suse90
IN A 192.168.0.3
support IN NS debian1.support.obda.home.
debian1.support IN A 192.168.0.140

Suse90 IN A 192.168.0.3
pc1 IN A 192.168.0.75
router IN A 192.168.0.1

When I initiate named, I do not get any errormessages in var/log/messages
With DIG I get the folowing results:

; <<>> DiG 9.2.2 <<>> @127.0.0.1 obda.home. NS
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 42267
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; QUESTION SECTION:
;obda.home. IN NS

;; ANSWER SECTION:
obda.home. 1209600 IN NS suse90.obda.home.

;; ADDITIONAL SECTION:
suse90.obda.home. 1209600 IN A 192.168.0.3

;; Query time: 2 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Fri May 6 11:05:04 2005
;; MSG SIZE rcvd: 64

It is rather strange (for me) that I can't see a reference tot the NS-record 
"debian1.support.obda.home."
I've put this record in the zone-file, but it doesn't seem to work.

<<>> DiG 9.2.2 <<>> @127.0.0.1 obda.home. SOA
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 8599
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1

;; QUESTION SECTION:
;obda.home. IN SOA

;; ANSWER SECTION:
obda.home. 1209600 IN SOA obda.home. root.obda.home. 200505061 172800 14400
3628800 604800

;; AUTHORITY SECTION:
obda.home. 1209600 IN NS suse90.obda.home.

;; ADDITIONAL SECTION:
suse90.obda.home. 1209600 IN A 192.168.0.3

;; Query time: 2 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)

;; WHEN: Fri May 6 11:05:12 2005
;; MSG SIZE rcvd: 105

Still no NS-record tot the support-subzone !


; <<>> DiG 9.2.2 <<>> @127.0.0.1 support.obda.home.
;; global options: printcmd;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 34300
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;support.obda.home. IN A

;; Query time: 2042 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)

;; WHEN: Fri May 6 11:06:44 2005
;; MSG SIZE rcvd: 35

In the end, I get an NXDOMAIN-error when I try to "see" the subzone.
What am I doing wrong here?

Thx,

Piet