Excellent, thanks for the response. Like I said I am all working now so reinstalling worked for me, I guess that brought everything to the latest version. Thanks for the info about firmware, I only reinstalled as part of my troubleshooting. I need to put the electronics away for a while and get some flying hours in :-).
Can I just ask one unrelated question, the AP_Failure signal does not seem to match the 'Fail' on the X-Plane Cessna AP LCD. Is that a different signal?