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
GIVEAWAY : The New iPad / iPad 3 Decal –
Thanks to the great guys over at The Decal Guru we are able to give away this great accessory for your iPad. The giveaway will close March 24th 2012. To enter just complete the following steps below. The giveaway is worldwide.