The PICKIT2 programming software has an option to read the Vcc on the system - does it read differently on this board than on the one you breadboarded? I know the Vpp error reported probably refers to the MCLR line voltage, but when you plug the PK2 in, what are the voltages on MCLR and Vcc versus your good breadboard circuit? solarwind wrote: > On Wed, Aug 12, 2009 at 3:53 PM, Bob Blick wrote: > >> It's unlikely. My next step would be to look for shorts or a trace that >> has a tiny break in it. >> > > Will do. I already tried and tested various parts using a multimeter > (for continuity) and it seemed to be fine (the capacitors are all > connected to the right pins, the header is all connected to the right > pins). I'll check for shorts again. > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist