Hi,
I have a problem with my Outlook 2010, which connects to an Exchange Server 2010 (SBS2011):
My to-do list view keeps showing duplicate entries (there is 2 of everything), although it's actually a single entry.
It seems to happen after the first synchronization when the connection is on the local net, when I synch the first time out of office through HTTPS.
outlook.exe /resettodobar and /clenreminders did not have any effect.
Deleting and recreating the profile works sometimes but after a while the problem comes back (and having 4GB of email to carry around re-creating when I'm out of office is not really a good option).
Thanks for any help.
Regards,
Andrea
http://answers.microsoft.com/en-us/office/forum/office_2010-outlook/outlook-2010-duplicate-tasks/6be2ac02-03a3-4775-86c1-295753bb2950
Also check your account sync with any mobile device this might be cause.