Unable to start debugging on the web server

[Sung]

Hi,

I'm an ASP.NET web developer using Visual Studio .NET
Framework 1.0. I recently rebuilt my developer machine
with fresh new installation of VS.NET. While I tried to
run my project, I got an error saying "Unable to start
debugging on the web server". I'm using IIS version 5.1.
Please help me and any help would be greatly appreciated.

Thanks.