Do you have a software that lets you look at the design, edit, etc? Download "My Editor" from Wings--it is free. After customizing for use, open the design and see if there are any stray stitches . The design size will display lower left bottom--is that correct? You can erase (delete) stray threads, resize, or move to the center--that might be the problem. If you are transferring via USB, be sure you don't have too many designs loaded on that. I have several software programs, but Editor is free and does so very much, I would not be w/o it.