Hi again..

Finally!! It started doing it again.. It was the steps on the driver board, had it set to 1/8" step, once I got it down to 1/4" step it ran smoothly.. I guess my steam powered laptop (P3 600MHz) was not up to calculating so many steps.. Shame as the movement is not quite as smooth as I would like.. Better than a poke in the eye with a bent stick though..!

Steve..