The smoke comes from PICsees smoking DAC, after electronic equipment has been in service a few years the ash build up on the circuits in what = we call "dust" After letting all the smoke out the PICsees get the munchies and start = eating the=20 packaging of the circuit. And you thought is was electrons! >>> bmoran@MILLENNIUM.CA 08/15/02 04:56PM >>> > There is no magic in electronics. Just bad contacts. Sure there is. All electronics run on magic smoke. If you let the smoke out, the electronics cease to function. - --Brendan -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads