HelloWorld ASP.NET 2.0 unit test fails in VS2008

Question

Hello,

When trying to run a super basic unit test in VS2008 ASP.NET 2.0, it fails:

Details: At first a simple HelloWorld() test in this ASP.NET web application project works, then I add something more real-world to the project, like an SqlDataSource and try to test that, which fails. Then I remove everything except the HelloWorld() test and that now fails.

Here's the method being tested:

Here's the WebRequestResponse_HelloWorldTest.html file (which looks like a directory listing, but that's the html in there):

Ideas?