monit didn't start services at boot

[Alessandro Ranellucci]

Hi all,

my server was rebooted and monit didn't start all services at 
boot. Infact, the pidfile for some of my services contained PIDs 
that after the reboot were used by other processes. For example, 
one was used by the cron daemon... This is why monit detected 
the process as running and didn't start it.

How can I ensure that monit starts my daemons at boot without 
trusting old pidfiles left by daemons before reboot?

Thank you,

    - alessandro.