Well must be something with the configuration of port A.

Code:
	DecButton var PORTD.0	' Press to Decrement Button
	SetButton var PORTD.1  'Press to Set/memorise Button
	IncButton var PORTD.2	' Press to Increment Button
The above works ! as does

Code:
	DecButton var PORTE.0	' Press to Decrement Button
	SetButton var PORTE.1  'Press to Set/memorise Button
	IncButton var PORTE.2	' Press to Increment Button
Thanks to all those who posted... at least I've proved my hardware is ok, just need to learn how to set up these devices correctly !