[ale] RHL9 crond doesn't read in new crontab entries

[Jerry Yu]

I wrote a simple bash script then added it to the cron a RHL9 boxen.
Weird enough, it didn't take. Initially I troubleshooted my shell
script, you know, adding verbose output and such. The /var/log/cron
shows other cron jobs ran just fine. After pulling my hair a little,
it dawned on me that the new job didn't show in the /var/log/cron at
all. The fix, of course is to restart crond.

Hmmm. I inherited the boxen a year ago. It has been up a bit over  500
days now. I never experienced such problem before with Solaris or
Linux. The symptoms repeated on another RHL9 boxen (up about 483
days). Any idea why?