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 Shares Hits All-Time High As Developers Rush Before September 12th Event
Apple stocks today hit an all time him of $644.95. After looking at the graph above you can see the last time $AAPL was above $630 was back in April just before they hit a 6 week decline in price which wiped $115 of each share and also $100 billion of Apple’s market cap.
The decline end on 17th May 2012 and Apples shares price has been on the rise ever since apart from a small drop at the end of July this year. The recent / sudden increase has been set to have been caused by investors rushing to buy shares in anticipation for the September 12th event which is set to be the event / keynote in which Apple will show of both the next generation iPhone 5 and also the 7″; Mini iPad.