Jake Szot wrote: > > > Are you taking into account, pin RB.3 and how it affects programming? > > We were leaving RB3 alone. We didn't want to do any low voltage > programing. If you are only concerned with high voltage programing do > you need to take any precautions with RB3? Try this then. It is a simple HV programming fix when the config is set for LV programming. (default) Put a 10K resistor from RB.3 to VCC and a 100nF from RB.3 to ground. -- Best regards Tony http://www.picnpoke.com Email sales@picnpoke.com