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 Going To Launch iPad 2s / 3 In March ? –
Everyone is expecting the next generation iPad with in the next few months but a report released today suggests that we will only see an iPad 2s or 3 in Marc which will include a HD display. The report then goes on to say we will see an QXGA display (1,536 x 2,048 pixel) and a better battery life from the iPad2s / 3. It then says that Apple will not discontinue the current iPad 2 but will cut the price to $399 and to say we will see all of this happen some time in March. Digitimes are not the most reliable source when it comes to products so just take this with a pinch of salt.