Mike, did you find a solution? I too have the same problem. I currently have WP installed at mysite.com. My domain is registered at godaddy. I added a cname for subdomain.mysite.com to point to mysite.com. The alias is working, as I can do host subdomain.mysite.com and it tells me it is pointing to mysite.com. However, when I try to view subdomain.mysite.com in the browser, I get a 403 error.
