First off, is the quilt dragging on your longarm? Don't you have a handle that will raise the level of the quilt up? My old Nolting did so i would have to turn it to lift the base of the quilt up off the longarm. Second, it would seem odd that it wants to go in its own direction, so have you cleaned your wheels and rollers? The tracks are clean? Those are my first questions. then are you getting a quality stitch? Is the bobbin case clean? Do you have any lint caught under the throat plate? From there, will need photos of set up to evaluate anymore. I am not a tech, I just love the Nolting even though I have a gammill now I owned mine for 7 years till traded in. I just outgrew my old one.