Hi all; Would you please help this PIC beginner about programming. I am using pic_up (picup v1 by Tomas Franzon) software downloaded from www.admittansen.studorg.liu.se. After programming 16F84 a few times you can not program it again b/c it gives message 'PIC code protected' (Although code protection is not selected). Looking forward to hear from you --------------------------------- Do You Yahoo!? Sign-up for Video Highlights of 2002 FIFA World Cup -- 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