sync birthdays

[BackWithNokia]

Now this is driving me insane. I did a hard reset a few weeks ago and I have just noticed that my contacts birthdays are no longer showing in my Calender. I have got my phone set up just as it was before. I have all my accounts set up and I have tried manually syncing. My Microsoft account is hotmail but I have to log in to outlook for birthdays etc. I have looked everywhere in my settings but just cannot get the birthdays to sync.