I'm developing an asp.net web application for mobile devices and I need an emulator for testing. I downloaded the Opera Mobile Emulator and it looks very promising for what I need except that I cannot get connected to my localhost. I am very new at this so please forgive me if this has a simple answer. If I use the URL http://localhost:52285/frmChooseDB.aspx I get "HTTP Error 401.2 - Unauthorized". If I replace localhost:52285 with my IP address (I work remotely so my vpn connection has 2 IP Addresses, 1 for client and 1 for server so I'm using the client IP Address but not sure this is the IP Address I should be using) I get "HTTP Error 500.24 - Internal Server Error An ASP.NET setting has been detected that does not apply in Integrated managed pipeline mode." How can I get the emulator to connect to my localhost page?