Okay, oddness....but first good news - It IS printing thanks to everyone's help here. I award everyone eleven point.
I did have another couple of questions:
When doing the leveling via the wizard, are the "Positions" independent? - - I don't think that they are, but the reason I'm wondering is that when I got to one of the positions, and was attempting to get it to provide resistance to the sheet of paper, I got an error saying that the head couldn't go any lower...but it was still too far from the surface to provide ANY resistance to the paper. I got it as close as I could and moved to the next positions, where I never got that error again. I was a little thrown that it only happened at ONE position, but my assumption is that this wizard knows that the bed SHOULD be flat, and so you can't freely put the head anywhere.
Is it possible to - as we scientists say - screw up the earlier positions in a way that it THINKS it cannot go any lower when it gets to a later position?
Related - - what do they mean by resistance? Do they mean that you cannot move the paper, or (my fear) that you FEEL resistance? That seems frighteningly subjective.
Thanks again, and sorry for my continued ignorance.