Hi,
Apparently my recent work in css caused this. I was using the import syntax to include a printer stylesheet inside the main style.css like this:
@import url('styleprinter.css')print;
It seemed fine in testing under IIS but apparently in the VS web server the "print" was causing a 404 file not found. Under IIS requests for css files is not handled by the .NET runtime but directly by IIS whereas under the VS web server requests for every file type are handled by .NET directly.
I've changed the implementation to use a separate link with media=print instead of the import, so if you do svn update then rebuild, this issue is fixed.
Thanks,
Joe