That recently happened to my WF too - I have a Bernina. I hadn't used it in a few years and couldn't figure out what was wrong - I took it to my LQS to see if I was doing something wrong or if it was bent. Turns out that the foot is 'broken' and not functioning properly. Don't know how that happened from sitting in the box but for some reason it doesn't 'engage' anymore. I had to order a new foot :( - now my budget for fabrc, patterns and other quilting goodies will be very limited for awhile.