Hi James, thanks for flagging this up. I noticed this "bug" (as we web folks like to call them) on Friday evening not long after we went live and we've notified our developers of the problem.
It's clear other people will notice it too - so credit to you for raising it here! I'll keep people updated here as to when it's fixed, which shouldn't be long. We're sorry for the inconvenience caused in the meantime.
