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
Confirmed : Apple Will Show Off iOS 6 At WWDC 2012 [Images] –
Today we received an image from Zac Altman which confirms that one of Apple’s biggest focuses at WWDC 2012 is iOS 6. This was expected and more and more features have been leaked in the lead up to WWDC
The image shows employess preparing for WWDC 2012 which starts on Monday by putting up an iOS 6 banner at the Moscone West Center
So much for doubling down on secrecy.