I just build my first programmer. I figured out how I would hook up the 12c508 in place of the pic16f84, except for one thing. does the oscillator terminal grouded on the pic16f84 need to be grounded on the pic12c508? or does it not matter at all, or should they always be grounded on any pic? ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com