I had the same problem quilting and I was only doing SITD. I was asking about it on another thread, had other problems (stretching my blocks and getting tucks), too. I loosened the pressure on the presser foot, and put on another foot so I could use my walking foot. I'll bet my thread is dried out, too as I have not sewed in about two years. Next time I quilt, I am going to also try changing the tension, though. This just reminded me to change my presser foot pressure back again. Thanks to all of you once again! I just love, adore, and appreciate this board and all you wonderful quilters!!! :-D :-D :-D