Yes, it was the GPOI.2 statement in the ISR that was causing the problem.
All fixed now

Code:
This is a Code Space Test
Hey, I even got the code space thing happening - I'm on fire!!!

Thanks for all your help guys - really appreciate it.
I will post details of the final project once it is all up and running - code, circuit diagram, PCB and some pretty pictures of the finished product.

Cheers
Barry