Get the probe out of the bin if possible and see if it has an adjustment slot in the side. I haven't read most of the rest of this thread but a quick skim doesn't sound like an adjustment issue - but worth a quick try. If adjustable, twiddle the control and see what happens. Then, throw it in the bin :-) Russell -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist