Hullo all, as have had no response to my earlier request regarding lack of gates except A0 from coe even after enabling J5 in firmware, just had a thought, could the 2 link wires on the bottom of the core board or lack of them cause this problem. As I noted before, everything else is functioning nicely, simply cannot get 8 x gates, only 1 from A0. Any suggestions would be much appreciated. Regards