I am so sad, my Bernina 440 QE has a problem that just started. When I sew for a few minutes, the computer screen looses all it's icons and the machine stops sewing. If I turn it off, I can sew a bit, then it stops again. Has anyone had this happen to them? I can only hope that it isn't the computer board. I've had the machine for 4 years now and it has been a dream. It was totally serviced in September too. Good thing I still have my 38 year old Bernina 830, and it is still going strong. Guess I will need to use one of my vintage machines, the Bernina or one of my Featherweights for a while.