Good find Momboz!

I see you mentioned the PICPROTO-USB up in post #3.
But I never even looked at the schematic.

For the time being I have to make a choice for by Melabs board usage: either using USB high speed (and put the C7 capacitor) or using SPI (and take away the capacitor).
If you're using a PIC with USB, the SPI interface will be on different pins, so it shouldn't be a problem.
But you're right. meLabs should have put a jumper in there for the capacitor.

Cheers!