Hello Cheryl,
Make sure first of all that the winder has dropped completely down, there may be a small piece of thread stuck under the winder and between the plate underneath which might be stopping the winder from dropping all the way down, if you are happy that the winder is completely down you may need to retime the machine, I can attach timing instructions for you if you e-mail me.
Ken
drivewithken@blueyonder.co.uk
August 2008