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
Rumours : Apple Are Planning A 5" Retina Display Device For Release In 2013 –
Rumours are suggesting that Apple are working on a new device which is said to include a 5-inch retina display. The reports are suggesting that we will see this device released in 2013 .The rumor was published by Macotakara who said they received the information from a reliable Chinese source but they also commented saying to take this rumour with a pinch of salt.
Just why would Apple do this ?