that's the problem, this is the same file -it skips / moves that letter to that off position! only change is putting hat attachments on. We tried running it in hat mode, flats, no change.... it's hit and miss now. We are able to run on heads 1 and 2 ok, it's head 3 and 4 so I'm wondering if there's something with the jigs..I don't really know how tight the metal band needs to be on them. And of course my local tech is out of town...I don't know what else to look at.