I hope this is an easy one, but I didn't have luck searching the forums.

I have wirelessly synched my Yahoo mail to my 8310 for some time. I would like to add the calendar and contacts.

Calendar: I currently synch my office calendar through the BES. Under calendar options, it shows my Yahoo calendar, but won't let me change the Wireless Synch to 'Yes'. Do I need to do something else?

Contacts: I currently synch my office contacts through the BES. I cannot find any options to Wireless synch my Yahoo contacts. Did I miss something?

Thanks!!!

No.
Yahoo mail is not synced, it is pushed.
You cant wirelessly sync calendar or contacts for yahoo.

Thanks for your help, but I don't understand. Why does the BB allow me to display the Yahoo calendar if Yahoo will not push the entries to populate it?

because you can sync it using usb and desktop manager.
But calendar or contacts cannot be wirelessly synced.