Well, I'm pleased to report I've got my MX-500 up and running though I had to think about it for five days! Now I understand: When the manual says press the key on the MX you wish to teach, it implies that you've got to let go of it. Duh! Once I figured that out, the learning process was incredibly easy! Next step: teaching it some macros. I think I'll write a "script" before I start to program the macros since sometimes I was creative assigning keys to functions not addressed in the pages keys. Here's a question: I've assigned power on and power off to the on and off buttons on the MX. When I program the macros must I power on for each component separately?
Thanks for your help gentlemen!

Jay