Thank you all. I keep hoping to figure it out. I'm getting too close to my seam ripper. My latest quilt has 156 blocks and I'm almost finished. I feel like the old dog that can't learn new tricks.
All goes smoothly for several blocks, then I have one that "moves." It looks like the feeddogs are pulling the bottom layer just a bit. Basting or gluing the beginning stich-line would stop the fabrc from moving. Thanks again.