Nameserver not found

[Garry Dolley]

When I try to add this nameserver to one of my customer's domains,
it get the error "Nameserver doesn't exist"

earth.opc.com.au

I have confirmed that it is running a correctly configured
nameserver. What should I do?

Thanks.

-- 
Garry Dolley (Programmer/Managing Partner)
ARP Networks (http://www.arpnetworks.com)
Providing IT Services Around The Globe.