Hello - Is it possible to erase just the calendar data on my BB8700 from my BB8700? if not, is it possible through synching w/ MSWINDOWS Desktop Mgr? Just delete calendar data on BB?

Details:
-(Mac OSX Tiger iCal PocketMac v 1.0.8 - latest versions of everything).
-Synching - overwriting - nothing seems to alter certain info on BB calendar-seems to synch new apmts but not delete - I've confirmed PocketMac setting OVERWRITE BB - I've chosen both options at different synching sessions to ALLOW DELETE [checked delete Debug Calendar] and ALLOW NOT DELETE [unchecked delete Debug Calendar]
-This is my Boss' BB that I sych to my computer bc I keep his schedule. He only synchs w/ my computer.

My thoughts are to erase BBCalendar - try synching again overwriting - changing a few apmts - synch again - see if data is correct - then determine similarities of apmts that can be altered w/ those that cannot - if still not working - coming back here!
But to begin problem solving I need a clean slate bc there are too many incorrect apmts now on BB that are not on my computers calendar.

Any ideas would be welcomed.
Many Thanks,

Easier via Windows and the Desktop Manager. Back up/Restore --> Advanced and you can choose the calendar only and delete its contents.

Thank you for replying AND so quickly.
Done.
Now my problem solving begins.
Sincerely

Desktop manager would work, but not on a Mac (unless you went to the trouble of loading Windows emulation software or use Bootcamp or something similar).

Other than that, the only thing I can think of is changing the number of days to keep entries to 15. That way, you only need to erase 15 days of appointments :(