Tony Kathro wrote... ... and all the nay-sayers jumped in. What a circus! Yes, of course you should never do it, it's totally daft and so on. It's in the tradition however of reverse-powered PICs glowing softly red, or green or whatever out the quartz window, isn't it? And then being re-programmed another hundred times. Now who can tell of the PIC that DID set the equipment on fire? Add it to the urban legends and pass on I say! ROTFLMAO -- Cheers, Paul B.