I have started to wonder about the senors, checked and cleaned them,But that doesn't mean anything I know. the stitch regulator appears to be working(I have tested this as much as I can).I am going to re-wind my bobbins they do not look right, I have been winding them on a different machine not the quilting machine,I do not know if this is the problem but... I spoke with Chuck yesterday He said to call him anytime so in the morning I will try the newly wound bobbins and then see. Aborning ,Thank you so much for all your suggestions, I am hoping the stitch encoders are not out they sound like that would be expensive.