difference in 'read all' and 'program all'

[mister_e]

probably some unused/modified EEPROM data. Try to erase your PIC (ALL, code, eeprom etc), then reprogram it.

Could be some device id or something like that.

Did you set your configuration fuse in your code or with your winpic software?

[cheezy1963]

I tried the full erase and it didn't change anything.

The config fuse is in the code and I didn't change it in the software. I did another test to where I simply opened the original hex file and did a save as. The original was 2762 bytes and the new file was 2851 bytes. I'm thinking it is something with the software now. I'm going to play around with the settings and see if I can figure out what is causing it.

[mister_e]

i wouldn't bother too much with that... it could be something like a PIC revision or something like that, which is simply not set in the code, but a Microchip setting... which is way not useful unless you have a silicone issue.