What are the synch settings on the Blackberry? Did you recently
change/update your Blackberry Desktop software?

--
Milly Staples [MVP - Outlook]

Post all replies to the group to keep the discussion intact.
ALWAYS post your Outlook version.
How to ask a question: http://support.microsoft.com/KB/555375


After furious head scratching, stefano445 asked:

| I have been synchronizing with a BlackBerry 8210 Curve using
| BlackBerry Desktop Manager 4.5 on my Vista machine running Outlook
| 2007 for nearly a year with no problem until this week. All of a
| sudden, all appointments in the Calendar have disappeared, with the
| exception of a single recurring birthday. Mail, Contacts, Tasks,
| Notes are all untouched. When I try to synchronize, new appointments
| that I enter into Outlook or BlackBerry, the synchronization with NEW
| appointments proceeds, but none of the existing appointments
| (previous to or subsequent to the date of synchronization)
| synchronize.
| What caused this?
| How can it be prevented from happening again?
| What work-around exists so that I can get my appointments from the
| BlackBerry into Outlook Calendar because trying to enter hundreds of
| appointments by hand is destined to fail and to be filled with errors.