a few weeks ago there were multiple threads about Yahoo problems with calendar and address book.
As for the address book it says in Bugzilla that it has been fixed in milestone "2.0". Does this refer to a new version of Zimbra Desktop?
The error still pops up every time I use YZD on linux or windows. Neither one says that there is a newer version than 1652 which is already installed.
Concerning the calendar sync, I heard it is a server side issue? Are there chances this will be fixed ?