Edit: After half day, my wife’s Mac started having the same problem. I have then applied the solution that I found in the Apple
Apple Starts Decorating The Yerba Buena Center Ahead Of iPad Event
With less than a week till Apple’s iPad 5 & iPad mini 2 keynote, they have started decorating the out side of the Yerba Buena Center for the Arts in San Francisco.
Even though the banners are still in the early stages it is clear that they are set to resemble the a similar design to what is on the press invitations for the event.
SourcePicture by David Jones
iPad 5 Keynote