thanks Joe/ A.
Wow, that just flew over my head. I am not conversant in any of it.

I took 30 emails to get it to work. I'm not touching it for a bit!

But if my main imac is at 75%, and the laptop in other room (with extender right next to it) is at 50%, that is not so bad?

(is would be 30% without an extender at all)