Quote Originally Posted by gabrielg74 View Post
External, 20MHz crystal.
Tried 5 different boards with the new PIC (fails) and with the old one (works ok).

Gabriel
Just looked at the ERRATA sheets from Microchip.
Nothing specific to that particular issue, but a lot of things that could be tied into it.
Suggest paging thru them to see if you can find anything.

Which version of PBP are you using?