>I've tried a 10MHz ceramic resonator and a 4MHz >crystal (with 2 22pF caps). I've tried compiling with >both XC and HS (from a previous post). I've tried on >a bread board and a soldered board. I admit that I'm >not quite sure how oscillators work but I've read as >much as I can and can't understand what is happening >here. Could there be a setting on the 622a that I'm >missing? decrease your capacitors from 22 to 3-5 pf. Tsvetan --- PCB prototypes for $26 at http://run.to/pcb -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.