There are 2 0805 resistors on the SoundBite board that are *incorrect*. These will cause the on-board 24.576Mhz crystal oscillator to output incorrect and/or highly jittered clocks. R20 was 100K change to 1M R21 was 1K, change to 100ohms. Took me about 3min to swap out, now it works perfectly. Paul S.