[Quick Fix] ASP.Net Load Problem
If you are having trouble loading your ASP.Net sites from the IDE and you have IIS Manager installed, you need to open up the IIS Control Panel
IIS Manager Control Panel -> Authentication -> Disable ASP.Net Impersonation
IIS = Internet Information Services (Pre-installed on Windows 7)
IIS Manager Control Panel -> Authentication -> Disable ASP.Net Impersonation
IIS = Internet Information Services (Pre-installed on Windows 7)