It sounds like Joe has given you some pretty good advise. My FW wasn't sewing correctly yesterday and I know I had it threaded right and the bobbin was done correctly, etc. I had just put in a new Singer needle but the thread was breaking every few stitches, etc. So, I changed the needle again to a new one and took all the thread off the machine, cleaned out the bobbin area and took fabric to run between the tension plates. When I rethreaded it, everything worked perfect. She was just being a little fussy and wanted some attention, I guess. I'm sure yours will come around and work for you once it is happy from the attention she's getting.