Try opening Outlook using the ".../CleanReminders" switch. The
link(s) below will give you the instructions on how to use it.
/CleanReminders - Cleans and regenerates reminders.
Depending upon your Outlook Version:
OL98: Additional Command-Line Switches
http://support.microsoft.com/default.aspx?kbid=182112
OL2000: Additional Command-Line Switches
http://support.microsoft.com/default.aspx?scid=KB;en-us;197180
OL2002: Additional Command-Line Switches
http://support.microsoft.com/default.aspx?scid=KB;en-us;296192

Signature
Nikki Peterson [MVP - Outlook]
I've deleted a reocurrence however it keeps poping up and
giving me a reminder. Any help would be great!
Thanks,
Frank