Hi
telnet server_name 80 or telnet website_name 80when black screen comes enter few times it will return HTTP headers, I have checked this does not reveal in my case as this is quite old issue.
If this "Content-Location: http://www.domain.com/Default.htm" is there then you have issue on your webserver.
http://support.microsoft.com/default.aspx?scid=KB;EN-US;Q218180