Quote Originally Posted by Frozen001 View Post
The PIC is an 18F8722, with a 20MHz external clock...

When I got the circuit card, the code was programmed on the PIC. I took the exact code on the chip, changed what was displayed on a display, adn programmed the PIC. Ever since then it is in slow motion...
I don't think the config fuses are going to be recovered from the hex when you read a chip, though I might be wrong. In using ICPROG it has available the option to set the fuses in the programmer, if the chip doesn't know about the EXT. OSC, it will run on what it finds inside, again FSCM . . . , have you verified the ext. OSC is working ?