Need help with domain registered at GoDaddy and host in HostGator.

Hi,

The WordPress setting is WordPress 3.5 MultiSite using example.com
I have the domain registered in GoDaddy and host the site in HostGator.

The main site is working great, and I mapped a subdomain called sub1.example.com using the Domain Mapping plugin to one of the site under the network. (example.com/site2 now is mapped to sub1.example.com) I added an A record in GoDaddy for the subdomain and point it to HostGator's server IP, and added a subdomain in HostGator and it worked.

When it comes to mapping a top level domain called new.com to another site under the network (example.com/site3), it did not work. I added an A record innGoDaddy for new.com and point it to HostGator's server IP. And added a parked domain in HostGator.

But it did not work, does anyone have any experiences or any successful examples before?

Many thanks and Happy Holidays!

wmv