Quote Originally Posted by The Master View Post
So if i set it to XT when it should be HS then i dont risk blowing anyhting up it just means that the resonator might not have enough power to run correctly?
It's got nothing to do with 'power' in the way that you're thinking about it. It's the 'gain' for the oscillating signal that goes into/comes out of the crystal/resonator itself.
The higher the frequency, the more juice you need... i.e. takes more energy to swing an electrical signal back and forth at 20Mhz than it does at 4Mhz. (if you really want to go crazy, pull up the datasheet for any old op-amp and look at 'slew rate')
You won't blow anything by setting the wrong mode, it'll either work or won't. (well, I should re-state that a bit...you SHOULDN'T blow anything up)

From what ive seen the PIC seems to be in a kind of standby mode. I do remember them doing the same kind of thing if the resonator isnt connected so that might be the problem.
How can you actually quantify that 'seems to be in a kind of standby mode'. It's either working for you or not.