I agree - also, do a thorough cleaning and check your tension.
Originally Posted by donnajean
Change needle & rethread both spool & bobbin - usually works.
Originally Posted by DeniseP
This seems to be happening more and more lately until yesterday I wanted to go into the cellar and get my husband's biggest hammer and do something I proabably would have regretted, but at the same time would have been sooooooo satisfying.