Sam, I'm worried about him, too. If he was lurking quietly, he should have responded by now. :sigh: There have been wildfires in Arizona, where people have been evacuated, so I'll have to see where I put his physical address and check the location. He'd said something a long time ago about it being cold in the mountains at night, so I suspect that he might possibly live on one of those ridges. I think the biggest problem may be that he just doesn't know what to say. The tutorials gave him a framework: he knew what he wanted to explain and how many examples to use, and he could count on our digressions to keep things from getting too didactic and cumbersome and our questions often led to the next one. Let's see what we can do to nudge him out of his lair. Carolly