Ian,
Very nicely laid out Word document mate!
Can I ask - could you check whether the 'ZAP' and 'SHIFT' buttons work with every-other button please?
i.e. If you press 'Shift' or 'Zap' do you ALWAYS see the value (generated by pressing Shift?).
With the 01X in 'X' mode the Shift-key only generates a value in combination with certain other keys (in fact many keys have this behaviour in 'X' mode - a real PITA (or at least it was
)).
Cheers Ian,
Deric.