Hi Kevin, Thanks for your reply. I've found the problem. I missed the step of clearing the mason data after the upgrade. As I'm using a freeBSD system the mason data is not in the usual place as the Documentation mentions (/opt/rt4/var/mason_data/obj/) rather it was under /var/run/rt40/mason_data/obj Once I cleared that I could then see the Search transform to Article Search!
Thanks again Nik
