Hi Michael,
This is a DNSonly server.
The exact error is as follow, but really cPanel should know this I expect quite a few DNSonly servers are out there.
E Blocker found: The mysql-version value in /var/cpanel/cpanel.config is invalid. Valid values are 5.1 or 5.5. You can change the value here: <A HREF="http://forums.cpanel.net/scripts/mysqlupgrade">MySQL Upgrade</A>
[20131211.230005] E Blocker found: Newer releases of cPanel & WHM are not compatible with your MySQL version: 5.0. Upgrade your MySQL server to a version greater or equal to 5.1
[20131211.230005] W An attempt to up/downgrade to 11.40.0.26 was blocked. Please review blockers.
Thanks anyway.