Wordpress Multisite with Domain Mapping and GoDaddy Hosting Issue

I followed the instructions for Domain Mapping plugin with my multisite install to a T. It seems like the domain mapping is working for the first domain I mapped, but when I tried to map a second domain it wont work.

In godaddy I am using a sub directory for the main domain. Within godaddy I mapped my URL http://www.capitaltitleagent.com to http://www.cregrp.info/capitaltitleagent however I get an internal server error.

When I executed the same steps for http://www.deeperndeeper.com mapped to http://www.cregrp.info/deeperndeeper it seems to work just fine.

I've read through as much support as I could but I can't find another situation just like mine.

Please help!

Thanks.

Justin