Hello, I am trying to do ICSP with a programmer I built from plans online (http://hyvatti.iki.fi/~jaakko/pic/picprog.html). It works great when I use it with the socket on the programmer, but when I try to do it in circuit, it fails. However if I disconnect the oscillator from OSC1 and connect RB6 to it, it works fine. I do ICSP with the PIC running, and the oscillator does run with the programming cable connected. Anyone have any ideas. Thanks. Mike _____________________________________________________________ Want a new web-based email account ? ---> http://www.firstlinux.net _____________________________________________________________ Promote your group and strengthen ties to your members with email@yourgroup.org by Everyone.net http://www.everyone.net/?btn=tag -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.