PHP/MySQL in Dreamweaver

I am trying to definte a PHP/MySQL page in dreamweaver. I created my database and that good stuff. It should be ready to go. I’m running into a problem when I try to connect to my database through the database panel. It is telling me that my URL Prefix isn’t set to my root directory, which i though was home/“username”/“domainname”/. It is also telling my that i’m having some type of problem with my testing server. Anyone been here before? I’m pretty new to this, but trying to learn. But its a little hard when I can’t even get into my database! Thanks in advance!