Quote: Originally Posted by
Blue ZX3 
Thanks for the brain kick, must go and dig up all those jumpers....I post my findings for anyone else wondering about why this was happening...
I can explain exactly why is happens.
There way the PIC samples is that it has one ADC and a 10 way switch. It connects to an input, charges a capacitor, reads the capacitor, and moves to the next. If there's nothing on the input, the capacitor never gets discharged to 0.