Thank you guys for responding.
Mike: I will have another look at the tach tape and reader distance tomorrow (Wednesday), and I will report back.
rtr12: Thanks for the link to the previous thread on this subject. I will try and do a reset using the hand-held remote following the sequence you have listed.......fingers crossed!!!! I'll get back to you as well to let you know if it worked, or not.
Peter.....Buco Australia.