> I tried lengthening a number of areas........sometimes has > caused more glitches Sounds odd. LCDs are usually pretty solid once you find out what they like. You're not missing another cure are you ? eg filter cap(s) right at the LCDs power pads. I've had to do that a couple of times with modules that wouldn't initialise. It might not be necessary but it shouldn't do any harm > Any suggestions for what to put on the enable line? Not really. I'd be more interested in hunting down the noise. I use both individual wiring and ribbon cable, all sorts of lengths, but not seen your problem. That it happens when you remove the analyser probe sounds like a good place to start. A probe would not be able to match a driven PIC pin for impedance. Perhaps some sort of earthing trouble or missing connection that's helped by the analyser. The Enable line isn't going hi-Z through s/w by accident is it ? Joe --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .