When we have a forum link without displaying redirect counter, the XHTML validation is a failure because <dd></dd> is missing between <dl></dl>.

Actually we have:

<dl>

   <dt></dt>

</dl>

But we must have, at least, to be valid:

<dl>

   <dt></dt>

   <dd></dd>

</dl>

See: http://www.whatwg.org/specs/web-apps/current-work/#the-dl-element