> Well... There might be a bigger problem if the kernel reports 53Mhz > on boot (that means upon frequency switch, the kernel internal timing > delays may be incorrectly adjusted). I'm still wondering why the timebase is not used to perform these delays. I know that the 601 will add a slightc omplication, but at least I don't know of any system in which the bus frequency, and therefore the timebase frequency, varies. Gabriel.