Greetings Gurus, I'm trying to program an 18F248 using P16Pro and Picallw 0.13d (latest version) Code is generated in MPLAB 6.10 My code works well enough in SIM, but when programming the chip, Picall claims a fuse programming error. It's a very short Flash LED type program, I don't think the trouble is in my program. This P16pro has worked fine with 16F series chips before. This is my first project with 18f chips, new MPLAB, and newest version of Picallw. Any suggestions greatly appreciated. Lyle -- 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