> I have noticed that my system clock progressively grows off.
...
> Does anyone know the cause and a fix for this problem?
I suggest you look into the use of "tickadj". Your system
clock is generating slightly more or less than 100 ticks
per second. Tickadj allows you to add slightly less or
more than 10,000 microseconds to the clock at each tick.
If you have a fixed connection to the Internet, you can
use xntpd for a while to determine the best values. If
you can afford the memory footprint, you can use xntpd
all the time.
Randolph Bentson
bentson@grieg.seaslug.org
http://www.ssc.com/ssc/insidelinux