Thanks, Cagey. I will certainly try that adjustment, as I have been doing a lot of quilting lately. It's *possible* that will fix the problem. But this is what has happened twice:
I had the machine powered on and had gotten up to do some ironing, and several minutes after I got up the machine suddenly started sewing. I heard the motor go on and the needle was going slowly up and down and up and down, like someone was slowly quilting. It didn't stop until I turned off the power switch. And one time, I turned the power switch on just to test it while I was using my other machine. I had not even used George, and about an hour after I turned the power on, I heard the motor start up and the needle was slowly sewing again. I know he's eager to do his job, but that's overkill!