I have long stitches now,it started with only long stitches in a curve but now it is all stitches. I did run out of bobbin thread and after this change is when I started having this problem. I have tried to adjust the tension but I guess I just don't know how to go about it. I am almost to the point of selling this aggravating machine. Someone HELP!!! I have a quilt on the machine that must be finished by Thursday! FRUSTRATED!!