I've recently moved a local Intranet site from one server running IIS6 to another running IIS7. Everything seems fine apart from on accessing the site I get challenged to "Connect to the localserver.localdomain.co
On entering the local Admin and password I get full access, however the only username and password that does work is the local admin. What I can't work out is what access I'm being challenged for. I have made myself a member of the local admin group without any success, I have changed the permissions on the files so I have local admin rights on them without any success.
Any help would be great. Picture attached.