Using the USB cable to sync my blackberry deletes all calendar entries older than 3 mos

Question

I'm not very good at this kind of thing, so please pardon what I'm sure will be mistakes/omissions as I describe my problem.
Every time I sync my blackberry using the USB cable (I'm told by my boyfriend who is an IT guy that I can't sync it wirelessly although I don't know why), all of my calendar entries in Outlook get erased--that is, all the entries that are older than 3 mos.  I frequently use those entries as reference so I can't lose them--so now I'm terrified to sync my blackberry.
Any help will be much appreciated!
Jenny

Answer 1

I just found this on the support page and am going to try it for a couple of days to see if it solves the problem:
Document ID:
KB18694
Modified Date:
01-18-2010
Document Type:
Support
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Contents [show]
   Products
   Environment
   Overview
   Cause
   Resolution
Products
BlackBerry® Desktop Software
BlackBerry® Desktop Software Version 1.0 (Mac OS)
BlackBerry® Devices
Environment
BlackBerry® Desktop Manager
BlackBerry® Desktop Manager Version 1.0 (Mac OS)
BlackBerry smartphone
Microsoft® Outlook®
Yahoo!® Mail calendar
Apple iSync
Overview
When synchronizing the Calendar via the BlackBerry Desktop Manager, past calendar events are being deleted on the desktop calendar application.
Cause
Calendar items on the BlackBerry smartphone were deleted as a result of the keep appointments setting in the Calendar was set to delete older appointments.
Resolution
To resolve this issue, complete the following steps:
Task 1
Configure the BlackBerry smartphone to keep past appointments:
Open the Calendar application on the BlackBerry smartphone and press the Menu key.
Select Options and then General Options.
Within General Options set the Keep Appointments options to Forever.
Task 2
Configure BlackBerry Desktop Manager calendar synchronization options:
For BlackBerry Desktop Manager version 4.5 to 5.0:
Connect the BlackBerry smartphone to the computer with a USB cable and open BlackBerry Desktop Manager.
Select Synchronize from the main menu of BlackBerry Desktop Manager.
Select the Synchronization link and click on the button labeled Synchronization to configure the synchronization settings on the BlackBerry smartphone.
Select the Calendar.
Select the option to Synchronize with Microsoft Outlook and click Next.
Select either the Two way or One way sync and click Next.
Select the Default profile for Microsoft Outlook.
For the Calendar date range select the option to Synchronize items within a range of days, configure the date range to sync 30 days in the past and 365 days in the future.
Click Next.
Continue through the configuration wizard and click Finish and then OK.
Perform a new synchronization.
For BlackBerry Desktop Manager version 4.2 and 4.3:
Connect the BlackBerry smartphone to the computer with a USB cable and open BlackBerry Desktop Manager.
Select Synchronize from the main menu of BlackBerry Desktop Manager.
Click on the Configuration tab and then on Configure Sync.
Select the Calendar.
Select the option to Synchronize with Microsoft Outlook and click Next.
Select either the Two way or One way sync and click Next.
Select the Default profile for Microsoft Outlook.
For the Calendar date range select the option to Synchronize items within a range of days, configure the date range to sync 30 days in the past and 365 days in the future.
Click Next.
Continue through the configuration wizard and click Finish and then OK.
Perform a new synchronization.
If you are still prompted to make deletions from Microsoft Outlook for past calendar events that were not manually deleted, then you may need to repeat the steps above and synchronize with a smaller date range for past events.
For BlackBerry Desktop Manager version 1.0 for Mac OS:
Connect the BlackBerry smartphone to the Mac with a USB cable and open BlackBerry Desktop Manager.
Select Calendar.
Select Two-Way.
Select All Calendars or Selected Calendar, checkmark calendars to use during synchronization.
Select Advanced Settings.
For the Calendar date range select the option to Only events, configure the date range to sync 30 days prior and 365 days after.
Click on Sync.
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