My nameserver isn't working properly, and I can't figure out why.

When I do a 'whois cfconsulting.ca', it shows the correct nameservers, with ns1.signupsystems.com being the primary. If you do a "dig @ns1.signupsystems.com cfconsulting.ca" you get the right IP.

But if you just do an 'nslookup cfconsulting.ca' it fails.

I'm baffled.