Yep, that's how silly I am. For posterity, Ray's post is

http://www.contour.org/ubbthreads/showthreaded.php?Cat=&Board=trouble&Number=976422&page=&view=&sb=5&o=&vc=1

I guess then its down to how do I know cable or electrics. Once I fiddle with it I'll report back.

Thanks for the help, Tony.

Scott