visual studio 2005: unable to start debugging on server logon failure

Yes! Microsoft AGAIN did a nice "security enhancement" to make developers nervous. I spent at least two hours to figure out, why my http://projectname.localdomain.tld Web Project is not working in VS.Net 2005 - I couldn't open it as a website, with it's own address, just as a Local Website, and after when I tried to debug it, the IDE replied: logon failure: invalid username or password. The solution is here: You receive error 401.1 when you browse a Web site that uses Integrated Authentication and is hosted on IIS 5.1 or IIS 6