Thanks for the help. As far as using mnemonics, I deliberately didn't because it's possible the problem is I'm setting them wrong. The overall code seemed simpler the way I posted it and I thought that would be more useful in finding the problem. I do use mnemonics in my code, but in a case like the question I just asked, is it really better to use them? Jason ----- Original Message ----- From: "Eric Bohlman" To: Sent: Wednesday, April 21, 2004 9:15 PM Subject: Re: [Pic:] 12F675 strange behaviour > BTW, *please* use mnemonics (like "GPIO") for registers rather than > numbers when presenting code for other people to read. -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics