Brilliant, that worked a treat. Exactly what I was after. Thanks very very much for your time and effort.
OK, thanks for your help anyway.
Many thanks for your reply.
Yes I have got that turned off.
I am running the shortcode in a popup overlay which works fine accept for when it is called from a category page. It then goes into filtering not search mode. Is there a way to stay in search mode all the time?
Thanks