Charles Leo taught me to list every single CONFIG item in the header on every program. There is a document included with the PBP package that lists all the CONFIGs and what the options are for every PIC. On my PC it is found at C:\Program_Files(X86)\PBP3_1\DEVICE_REFERENCE\PIC1 8F2550 for your choice. The PBP package includes several useful resources like this, if you know about them. Glad you found your issue.