Clock slowdown problem solved (almost)

[mol-general@lists.maconlinux.org]

I've been investigating the clock slow-down problem (the clock
ticks one second ever six second or so). The cause of the problem is 
an overflow in Apple's timer calibration code.

According to my calculations, the overflow occurs on 
machines with a timebase slower than 12.5 MHz (which usually
corresponsd to a 50 MHz bus). As far as I know, only certain
accelerator based machines fall into this category.

I'll write a fix for this problem shortly.

Cheers,

/Samuel