p.s. I did promise to post an update today. So far, no success. I checked all the machinery (the motor, etc.) -- it is clean as a whistle. Probably due to the fact that I always put it away when done, and didn't use it too often. I fully checked out the bobbin area to be sure there wasn't a jumble of threaded knots, it's all clear. Changed out stitching again (like going from a straight stitch to otherwise, etc.) Changed tension both up and down. Still no progress on getting it to start sewing. What I don't get is that the motor worked just fine for the bobbin part, why not the top (sewing) part ?