Notification Center: Banners keep reappearing
I´ve a strange behaviour with notification center in 10.8.3 on mid-2012 iMac: I get notification banners for calendar events and birthdays by default – which is what I want. Sometimes, the banners reappear several times a day though I click them away (without clicking on „repeat“/„snooze“). They pop up every couple of minutes. I even get alerts for yesterday´s events popping up again and again saying the event XY will take place „yesterday“.
I wasn´t able to find anything related to this behaviour while searching the internet and the Apple forums, but I hope someone will have a clue what could cause this annoying bug.
Thanks in advance, regards, Till
iMac (27-inch Mid 2011), OS X Mountain Lion (10.8.3), 16GB RAM, 2TB HDD