Well, I first changed the stitch selection and didn't do a thing. Tried playing with the stitch length before taking it all apart, and nothing. So I opened it up. Dorothy,I should know better than to not read the manual thoroughly - I did not know that grey plastic bobbin casing cover thing came up! As soon as I got it up and the casing out, I knew *exactly* what my problem was - LINT and LOTS of it. I just got the machine yesterday and only played with it for a little while. We're still getting to know each other, she and I. I did give it a tiny bit of oil on the needle shaft bar, and she responded well.
Thank you all, so much!!!