> 2 hours of debug, and now a flasher-LED that has been clearly > marked with a Sharpie... Try having the scope probe on the wrong pin all day ..... Of course it wasn't my fault. I can count can't I ? Well, on a good day maybe Your and my cases are exactly why you should assume nothing. Have a list, start at the beginning, tick everything that's proved true along the way Although even that doesn't work all the time unfortunately -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist