Hello Terri,
It sounds like a tension problem to begin with, go through the basics first, make sure the presser foot is up when you thread the machine so the thread goes between the tension discs, top tension between 4 and 6, make sure you have the needle in the correct way round, bottom tension should be enough to pull the thread through with some resistence, if it is too tight loosen the screw on the bobbin case anti clockwise about half as turn at a time until you get it right, any problems e-mail me drivewithken@blueyonder.co.uk
drivewithken@blueyonder.co.uk, March 2008