I just got my PIC programmer (EPIC Plus - part of MicroEngineering Labs' PicBasic Compiler Bundle) and I'm about to order some crystals for my PICS (16F84 to start - others later). I'm guessing that the 4 MHz _PARALLEL_ crystals in the DigiView catalog will do the trick and that the _serial_ crystals won't. Does anybody know if I've got it right? Dave, N9LTD