Blackberry - Calendar not syncing

Desktop app shows Calendar (not installed):

"When opening Organizer within BlackBerry Desktop Software 6.0, the calendar shows as not installed."

Blackberry has a temporary workaround:

Perform the following steps:

1. Back up the data on the BlackBerry smartphone. See KB23680. 
2. Delete all data and applications from the BlackBerry smartphone using the Wipe Handheld option. See KB14058.
3. Restore the data to BlackBerry smartphone. See "restore data' in KB23680 link above.
4. Connect the BlackBerry smartphone to the computer and open the BlackBerry Desktop Software.
   Calendar (not installed) will no longer be present.
   Source: http://www.blackberry.com/btsc/search.do?cmd=displayKC&docType=kc&externalId=KB23978
   
   3/21/2011 - This still works and is the only method I have found to 'fix' this issue.