I purchased the Visual Studio .NET 2003 evaluation product and installed and
activated it on an XP Pro SP2 machine that was fairly crufty from many
install/ uninstall cycles of various applications, services, development
tools, etc..  My goal was to try out C# and ASP.NET for web development.  
Given the state of the box, I ran into multiple problems: IIS, web server
debugging, etc..

After much frustration, I decided to rebuild the crufty box, and install the
VS on another machine with a relatively clean install of XP Pro SP2.  When I
try to activate VS over the Internet, it gives me a dialog to the effect
"this product has already been activated and can't be activated again".  The
option to telephone for activation is disabled.

Any suggestions?

TIA,

David