Master DNS in SOA not found?

[DesignGuy]

This is probably a newbie question but it is giving me fits. I'm trying to
get the DNS setup on my server (RHEL, Plesk Control Panel). I keep getting
arrors on DNSReport.com and CheckDNS.net

"WARNING: Your SOA (Start of Authority) record states that your master
(primary) name server is: domain.com.. However, that server is not listed at
the parent servers as one of your NS records! This is probably legal, but
you should be sure that you know what you are doing.

"Master DNS defined by SOA (domain.com) was not found among NS records."


The file domain.com in the directory /var/named/run-root/var contains the
following:

*** start file ***

$TTL 86400

@ IN SOA domain.com. webmaster.anotherdomain.com. (
   1088728934 ; Serial
   10800 ; Refresh
   3600 ; Retry
   604800 ; Expire
   86400 ) ; Minimum

ns.domain.com.   IN NS  ns1.theplanet.com.
domain.com.   IN A  67.99.99.99
webmail.domain.com.  IN A  67.99.99.99
mail.domain.com.  IN A  67.99.99.99
ftp.domain.com.   IN CNAME  domain.com.
www.domain.com.   IN CNAME  domain.com.
domain.com.   IN MX 10 mail.domain.com.

*** end file ***

The primary and secondary nameservers are ns1.theplanet.com and
ns1.theplanet.com.

Can anyone tell me if the above is correct, and if not what changes should
be made? Making changes to the file seems to have no effect as far as the
domain check reports go. Is their a time lag or do changes take effect
immediately?

Many thanks in advance.