> but it still didn't fix the issues I was having Are you using the crystal that was with the PIC when the supply was reversed ? At various time I've had crystals (not many) die on me and also put PICs in a socket u/d (which isn't quite the same as a reverse power hook-up) without apparent harm to the crystal. Maybe with reversed power OSC1 and OSC2 will do some damage -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body