08-21-2008 12:17 AM
To synchronize your calendar, tasks and contacts wirelessly requires Exchange and BES (BlackBerry Enterprise Server) service. If you have BIS service then you will need to connect your BB to your PC using the USB cable (or Bluetooth) to synchronize your information.
A work around if it is just you is BlackBerry Unite software. Go to BlackBerry's website and search for it.
Hope this helps.