Thanks, Miriam but I think it's the timing. I will watch the video because although I've sent them to the shop in the past I think I'm ready to tackle it myself. The only other thing I can think of is that this machine has been "retimed" to take standard needles, not the 206 x 13 it's supposed to use. I've just spent a small fortune on these needles so darn it, I want to use them!