One thing off the bat is either you are on BIS which is an individual Blackberry internet account or service. If this is the case, I think the only way you will be able to sync your calendar is via USB cable. Now if your on BES which requires a license to activate the enterprise server you will need to set up the user email and password through an administrator who would then in turn activate your device to sync with your desktop/laptop
BIS is more for personal use.
BES is more geared towards the work/professional environment.
Hope this helps...Good Luck
Forgive me, I'm so new to the BB. How will I know if I'm on either? When set up, the darn thing never asked me about it and I'm just not sure what to do.