See if using the /cleanreminders switch helps.
refer he
http://office.microsoft.com/en-au/as...031101033.aspx

It might not - it does really seem like a time-synch issue.
--
Bill R MVP
"Gene Di" Gene wrote in message
...
Reminder appears 5 minutes after set time. If the reminder is set at 2:00,
the reminder comes on at 2:05. System clock is okay, time zone is okay,
daylight savings time is turned on.