In reply to Mark Kemball:
Still don't understand. Top right? There is a Search box but no UKC logo as far as I can see.
Which tabs is it obscuring?
We don't see the same thing otherwise we would do something about it so you have to describe it in much more detail.
Also, please use the report fault form since this grabs your Operating System and Browser Version details which, again, is crucial information.
Alan