Somehow a message linking to the solution disappeared from this thread. Thi= s is the archived message which contains said solution, again. If admins wish to remove this message too, please contact me privately by email. http://article.gmane.org/gmane.comp.hardware.microcontrollers.pic/114966 The entire thread this is in, is germane to the discussion of clamp diodes = on pic and other microprocessors. -- Peter --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .