> But it seems so easy (really just one instruction) that there > must be a > catch. :-) Anyone see any? If your 'need' is periodical you might end up with not-so-random numbers. If your need is not periodical (but essentially random placed in time) that is the source of randomnedss you are using, and it might work well, depending on how random it is. Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products -- 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