I switched the needle this morning and only had time to sew one line of quilting but it did fine, so I am feeling pretty good about it right now. I am sooo glad I figured out what I had done as I was ready to send this girl to the dump!
Thanks again everyone!
BTW, any more tips on how to get the needle bar to stop moving when winding a bobbin? I have cleaned it many times but it still does not always disengage.