no-cache dns server error

I am running into some problems trying to setup a chrooted,
authoritative-only, no-caching DNS server using bind-9.2.3. I keep
getting message "server can't find <server_name>: REFUSED" when I
tried nslookup. localhost resolves fine, however. I hope someone out
here would know what I am missing in my DNS configuration. The
configuration files for my dns server are as follows:

=== named.conf

options {
directory "/var/bind";
pid-file "/var/run/named.pid";
version "[SECURED]";
allow-transfer { none; };
notify no;
auth-nxdomain yes;
# Disable cache
recursion no;
additional-from-auth no;
additional-from-cache no;
};

zone "localhost" {
type master;
file "localhost";
};

zone "0.0.127.in-addr.arpa" in {
type master;
file "127.0.0";
};
zone "lecomp" {
type master;
file "lecomp";
};

zone "100.168.192.in-appr-arpa" {
type master;
file "192.168.100";
};


== /var/bind/localhost
$TTL 1D
@ IN SOA @ root (
2004070101 ; Serial
2D ; Refresh
4H ; Retry
6W ; Expiry
1D) ; TTL
IN NS @
IN A 127.0.0.1

===/var/bind/127.0.0
$TTL 3D
@ IN SOA localhost. admin.lecomp.com. (
2004070102 ; Serial
2D ; Refresh
4H ; Retry
6W ; Expiry
3D) ; Minimum TTL
IN NS localhost.
1 IN PTR localhost.

=== /var/bind/lecomp:
$TTL 3D
@ IN SOA localhost. admin.lecomp.com. (
2004070103 ; Serial
4H ; Refresh
4H ; Retry
6W ; Expiry
3D) ; Minimun TTL
IN NS localhost.
IN MX 10 mail.lecomp.com.

localhost A 127.0.0.1
mail A 192.168.100.23
lecomp.com. A 192.168.100.54
www CNAME lecomp.com.

========/var/bind/192.168.100:

$TTL 3D
@ IN SOA localhost. admin.lecomp.com. (
2004070104 ; Serial
4H ; Refresh
4H ; Retry
6W ; Expiry
3D) ; Minimum TTL
NS localhost.
23 IN PTR mail
54 IN PTR lecomp.com.

== /etc/resolv.conf
nameserver 127.0.0.1
search lecomp.com

===========

TIA,
Tom