Thanks for the advise. DH was helping me and we did some adjusting of the bobbin (loosening it a bit) changed to a spool of King Tut thread and adjusted the tension. It helped a lot, not the best but it worked well enough to finish the quilt. I did not think it was the batting since the minky was showing. I do a lot of quilting with minky on the back and never had this problem. I will change the batting if I have this problem again.