Multiple instances of crond

["Moby" <moby mobsternet com>]

When my RH 7.0 box boots, it starts running crond.  I noticed that after a
couple of hours of running, another instance of crond appears.  This wrecks
havoc with my cron scripts since each instance of cron then starts running
my scripts.  I have not been able to see what/why the second instance of
cron is being launched.  This started happening after I used up2date to
upgrade to the latest version of cron.  Has anyone else seen this problem?

Thanks in advance for any help,
--Moby