Unable to Start Debugging on the web server

[Guest]

I am trying to use the debugger in Visual Studio .Net 2005 and whe I start up
the debugger I get the error "Unable to Start Debugging on the web server.
The type initializer for 'System.Net.Digest.Client' threw an exception."

That is all I get. I have in the past used the debugger in this application
and it has worked. It just stopped working. I have the correct project
selected as startup project and the correct page on start.

Anybody run across this? Could it be on my web server. In IIS I have allow
anonymous unchecked, but I have windows authentication checked, so the
challenge box doesn't show up. OR could it be I need to add the namespace or
update the namespace for 'System.Net.Digest.Client'?

Any ideas.