Server error when clicking on icon (shown after successful check)

Copied the HTML for the icon link and pasted it into a web page:

<p>
    <a href="http://jigsaw.w3.org/css-validator/check/referer">
        <img style="border:0;width:88px;height:31px"
            src="http://jigsaw.w3.org/css-validator/images/vcss"
            alt="Valid CSS!" />
    </a>
</p>


When I render the page and click on the link, I get the following error:

Target: http://localhost:50485/index.html?

I/O Error: Unable to contact target server localhost:50485 after 3 tries.

______________________________________________________________
James Jensen
Software Analyst
LinkedIn: http://www.linkedin.com/pub/jim-jensen/1/3b0/396