From: "RobertB." 

Well, you either Sleep it or leave it on all the time. However, in Tiger
(forget which upgrade) Apple fixed the way cron jobs are launched. Now they
run when the machine is on but not in heavy use. I see from my own logs
that daily and weekly cron jobs are, in fact, being run automatically when
the machine is on (not asleep). I used ot run 'em from the command line,
but this is better. I believe that the changes made by Apple were to the
LaunchServices demon.

robert

In article , "Frank Haber"
 wrote:

> Dubious idea to always sleep a Mac, it's said.  That keeps the cron jobs from
> running.  There are utils, of course, to force a manual run without going to
> the jungly-bungly precincts of the dreaded commandline (g).
>

--- BBBS/NT v4.01 Flag-5