I am trying to do a new installation on a subdomain. The guild site is at tlu.gap100.com . I made a directory under that subdomain called roster and copied all the files into the appropriate locations under that. When I run install.php, I can get to step 2 where I fill out the form with the configuration for the database host, username, password, site URL, etc. When I click 'Proceed' on that page, I get an error message that it cannot find the page it is supposed to go to; it says the page does not exist. I think it is because I'm using a subdomain based on what I found in another topic. What files do I need to edit to make this work? Or is this the result of a different problem?