A user just came into #ubuntuone on IRC with this same problem. You need to enable the "[] Use in Birthday & Anniveraries calendar" option in the properties for the "Ubuntu One" address book. It is not enabled by default on non-local address books in Evolution.
A user just came into #ubuntuone on IRC with this same problem. You need to enable the "[] Use in Birthday & Anniveraries calendar" option in the properties for the "Ubuntu One" address book. It is not enabled by default on non-local address books in Evolution.