I'm having the same problem where it won't allow me to build the site. I ended up using my FTP to load the site up after I built it on my computer. However, now I need to figure out how to make it so the external domain goes to that particular folder on my account.

It has nothing to do with the name servers. It has to do with the Bravenet site not allowing you to BUILD the site once you add the external domain. As he said, it kind of does a loop thing and doesn't ever take you to the building page.

I am having the same problem. I show an external domain name and get into a loop that does not direct you to the web builder