My apologies for bringing up such an old thread, but I must note that this issue is still present in PBP version 2.46. FOSC and IESO still corrupt the last two bits of the Configuration Word 1 (oscillator settings), and it is impossible to access the actual fuses for those two settings.

Unfortuanately, I do not have access to the other assembler you reference, but is it possible to change the .inc file such that these fuses are correct? Or is this simply an error within the assembler itself?

I appreciated finding this thread (from Google) - thank you for your effort in examining this problem. It has been very helpful to read your previous responses.

Matt