Hi, I have tried to setup calendar synchronization correctly. First of all, I noticed I had duplicate calendars on my iPhone, one "from my mac", and one "iCloud". As a result, events appeared twice in the notification area. Getting rid of the "from my mac" calendar and keeping only the iCloud one looked the right thing to do. And it worked, not duplicate notification anymore. Except that when I sync my phone and my mac through iTunes, clicking the sync button on my mac within iTunes, it recreates the calendar "from my mac" on my iPhone, which results again in duplicate notifications in the notification area. This is driving me crazy. I do not manage to figure out what happens! By the way, iCloud push synchro between my mac and my iPhone seems to work perfectly as long as both devices are connected to the internet. So I wonder if there is a work around if I happen to have no connection and I need to synchronize both devices... I hope my explanation is clear, I am bit confused by all this.