> So my colleague assures me. I'm not using an external crystal -
> there's a default oscillator on the board, isn't there?
> (Again, forgive me my naivete, I'm new to this.)
if you are reffering to the pics internal oscilator then
yes there is
yes it is 8mhz
no it can't be used with the PLL (unlike on other PIC18 chips)
no it can't be used for usb.
and if you wan't to use it you need to select intosc.

if you are reffering to a crystal on the development board you are using
then we need to know what development board that is.

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