OK, thank you!
I realized these were old threads, but when you do a "search" for a topic (which is always a desired step from what I understand), and I find a similar problem, I figure it doesn't hurt to bring back an older thread rather than start up a new one. I was not expecting the original people to reply, but anyone who might be around the forum these days.
But next time I will simply start a new.
Thank you!
Update: Since I posted that first comment, I have now tried 4 different pics, all well inside of the max dimensions/K's, etc. and all are saying "failed." So I give up for now on pics.