umm...I have one of the new 570's and they are fickle....ok...not fickle...but smarter then me.....they don't let things happen that can damage your machine...more then once....I have been frustrated because my machine would not sew only to find I was in programming mode or had not selected the right foot, stitch plate, or needle in the left column on the machine....I assume you have already turned the machine off for a bit and then turned it back on? Just double check all those settings...took me a while to get the hang of making this machine stitch!