Code:
MyPin = Bell
MyPin = !Mypin 'This will force the logical Not at the bit variable level
Report = MyPin + 48
Thank you Tabsoft for the above snippet. Tested and it works. I have already replaced the IF/THEN/ELSE code that I could not stand with.

Now that a more elegant workaround has been found, the question remains: PBP3 cannot handle pin alias. Is it a bug?

Cheers

Al