The 12F683's arrived today! I didn't order them until late last night, talk about service, I love the internet....:-)
I changed the 12F675 PIC over to a 12F683 and it ran your program a treat.
I've got a lot to learn still, a huge amount but really enjoying it.
My first project (I'm getting ahead of myself here I know) but my first project will be to make a 12F683 OUTPUT binary coded decimal four bit words and drive a seven segment display. I figure with the 12F683 having six outputs this is a viable project.
Dave