palmOne Treo 650 Using Instructions page 172

170 :: Synchronization
8. (Outlook only) Outlook subfolders and public folders are not accessible with the
included software. You may wish to use a third-party solution instead.
9. (Outlook only) If you're trying to synchronize offline, be sure to set your Outlook
Calendar, Contacts, Notes, and Tasks to be available offline.
10.For more information on Outlook Conduits access the Outlook Conduit online help.
Launch HotSync: Custom..., double-click on one of the Outlook conduits and
select Help.
I have duplicate entries in Microsoft Outlook after I sync
1. Open Microsoft Outlook and delete the duplicate entries.
2. Manually enter any information you've added to your phone since the last time
you synchronized.
3. Go to the conduit dialog box for the affected application, and select Desktop
overwrites handheld.
4. Synchronize your phone and your computer.
5. Go to the conduit dialog box you selected in step 3, and select Synchronize
the files.
My appointments show up in the wrong time slot after I sync
If you're using Microsoft Outlook:
1. Make sure that you installed the Microsoft Outlook conduit that came with
your Treo 650. If you're not sure whether this software is installed, reinstall it.
2. Open Microsoft Outlook and correct the wrong entries.
3. Manually enter any information you've added to your phone since the last time
you synchronized.
4. Go to the Calendar conduit dialog box, and select Desktop overwrites handheld.
5. Synchronize your phone and your computer.
6. Go to the conduit dialog box, and select Synchronize the files.
You should now be able to assign time zones to your events without encountering
this problem.