How can I restore to an older version of calendar data?

I just did what I thought was a "normal" sync of my blackberry to my outlook.
However, after it was done, most of my appts - historical & forward - are
gone!

how can I restore to my calendar, to let's say an hour ago?

Thank you

unless you have a backup of your mailbox or pst file, you can't recover the
lost appointments.

--
Diane Poremsky [MVP - Outlook]
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"trfrantila" <trfrantila.RemoveThis@discussions.microsoft.com> wrote in message
news:3DABE098-8D1E-4C7B-B089-934A13973FBF@microsoft.com...
> I just did what I thought was a "normal" sync of my blackberry to my
> outlook.
> However, after it was done, most of my appts - historical & forward - are
> gone!
>
> how can I restore to my calendar, to let's say an hour ago?
>
> Thank you