Did you try restarting Outlook with the /cleanreminders switch?
See http://www.outlook-tips.net/beginner/switches.htm if you need help using
switches.

--

Diane Poremsky [MVP - Outlook]
Outlook Tips: http://www.outlook-tips.net/
Outlook & Exchange Solutions Center: http://www.slipstick.com

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Let's Really Fix Outlook 2010
http://forums.slipstick.com/forumdisplay.php?f=34

"DH" wrote in message
...
I am running XP Pro on both my work and home PC's. I have been using
active
sync to sync my smart phone with Outlook (Office 2007 not sure which
version)
at work for quite some time.
I recently purchased Office Pro 2007 for home and began syncing with this
'home' PC too. I have been noticing that when my reminders show up (for
appointments) they are often duplicated.
Also, annoying is the fact that when the reminders pop up I 'dismiss'
them,
and within minutes they pop up again. Is there a setting I need to change?
What's causing this? For example- there is one that poped up a few minutes
ago for an appointment in 5 day, my reminder is set for 5 minutes before
start. It has now poped up 3 times while writting this.
Please help!