VS.NET 2003 on Terminal Server

[MDB]

I just installed Visual Studio Pro 2003 on our terminal server(Win2003 Server). When I login to terminal server as Administrator or with someone in the Administrators group, I can debug ASP.NET applications without any problems. However, if I log in as a user that is not part of the Adminstrators group, I get an error

Error while trying to run project: Unable to start debugging on the web server. Access is denied
Click Help for more information

As soon as I add the user to the Adminstrators group, I can debug the application just fine. The user is a member of the VS Development group and the Debugger group. It only works when I add the user to the Admin group

Any ideas? For security reasons, I can't add my VS.NET developers to the Admin group

thanks