@K.C. - Yep. I'm using the automatic feature rather than the manual and letting Acronis decide what it needs and agreeing with all of the suggestions.
I've never had this happen before and until now have been a satisfied Acronis user. All I get is a box that says that the cloning operation has failed, about 20-30 seconds after it starts. There's no explanation or suggestion of what is wrong, which seems to be a flaw to me.
I don't like doing just a backup of my C drive because I've found, on various products, I end up with data that is in a proprietary format or otherwise not immediately usable. What I'm trying to create is an exact replica and up until now I've had no problem.
I'm truly stumped.