I recently updated to 10.4.8 and now (based on CoreDuoTemp) my 17" MBP constantly runs at 2.17Ghz. The temp and proc use % are normal, but the speed is constant. I find it odd and want to know if anyone else is experiencing this. Of course, nothing is going to be hurt from this I guess, and i haven't seen much of a battery change, but still, it doesn't HAVE to run at max 2.17 constantly. I searched and found nothing, any explanations/solutions?