Thank You, donna13350, that makes sense. We all run around with laptops and tablets so why would a sewing machine be at risk? In fact one of my machines needs a new clock battery, which means tipping the machine over to access the battery, and I had been hesitant to do it. However what about vibration? My Bernina had to be repaired because of a loose screw. This was on the left side near the bobbin, the screw evidently is there to hold the back and front parts of the machine case together. I thought the car ride had done it.