Thomas C. Sefranek wrote: > O.K. the biggest hint I now have is... > > It WORKS with the ICD in debug mode!!! (Connected to the one node out of > 12 that always fails.) > > But not when the same code is programmed into the PIC. Including leaving > the ICD connected but released so the code can run. > > This is too obvious for me to comprehend. Can one of you point out the > OBVIOUS to me? The one obvious change is the ground connection. Having the ICD connected, you probably change that. Gerhard -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist