Thanks Dave but changing the .inc file is more pain than gain.

This little project has three 18F4620. One uses IntIO2 at 4 MHz which is where I want to activate the PLL, another uses HS with a crystal at 20 MHz and the third uses XT with a crystal at 4 MHz. It is easier to just change the Config fuses on the MeLabs USB serial programmer.

Cheers
Brian