Calendar has crashed.
Calendar has crashed on my MacBook Pro Retina, 15-inch, Early 2013 OS X 10.9.1 (13B42). Calendar is stuck with an upgrading calendars graphic (blue barber poll is not moving) Can do nothing but force quit. Rebooting does not help. Is it possible to delete/remove the calendar app and download a new version? Thank you for any help you are able to provide.
As it reopens after quit and reboot.
MacBook Pro with Retina display, OS X Mountain Lion (10.8.5), 15-inch, Early 2013 2.8 GHz Intel