[ILUG-BOM] Dovecot Time moved backwards error

Dear Members,

I have setup a small mail server for my office on ubuntu server "Hardy" running on vmware.

It runs postfix +Dovecot +getmail + squirremail.

Every thing works fine except dovecot which crashes because of "Time moved backwards error"

To overcome it I have put a restart in CRON every 5 min , but I keep getting this message

Cron someuse@localhost /etc/init.d/dovecot restart >/dev/null start-stop-daemon: open pidfile /var/run/dovecot/master.pid: Permission denied (Permission denied)

How can I overcome this dovecot problem , I googled but could not find a proper solution

With regards Deepak

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