[UPHPU] tracking domain calls

[MilesTogoe]

I switched one of our domains to GoDaddy, pointing it to a linode vps.  
But the domain just hangs in space.  The godaddy account seems to be 
pointed to the correct linode servers (NS1.LINODE.COM, ...).  The apache 
virtual domain host on our linode account seems to be right:

    sudo vim /etc/apache2/sites-available/ourdomain
<VirtualHost *:80>
       ServerName  ourdomain.com
       ServerAlias www.ourdomain.com
       DocumentRoot /home/ourdomain/public
</VirtualHost>
   sudo a2ensite ourdomain
   sudo /etc/init.d/apache2 reload

but all I get is nothing - no errors, just nothing.  So is there any way 
to trace the browser call - to see where it is trying to go ?  So I can 
tell if the error is on the godaddy side or the linode side ?
thks for any help.