Getting DNS Issue on the new subdomain blog

Hello -

First and foremost, I'm grateful for all the help I received so far. this is a great forum. I've installed the new blog templates piece on a site and I can register to get a blog as a subdomain BUT when I click on the link it throws a DNS entry.

Is there something I didn't write in the htaccess? In the config file?

I ran through the forum and searched:
- dns_unresolved_hostname
- DNS issue installing new blog template
- DNS issue blog template
- DNS issue template

I didn't find anyone with this issue. I'm sure it's going to be something really really dumb.