Hi there, over the last 2 weeks this problem has cropped up each time I've used my machine. It is 3 years old and has done this before, but following the instruction booklet it has always worked after setting the knob to stop/reset. Now I just keep trying till it works.....just pot luck and has taken up to an hour and I end up using anything that'll work program wise. Please can someone offer some advice. Many thanks Lex.