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
Intel Launch First Quad-Core Ivy Bridge Processor , Just A Matter Of Time For The Next Gen Mac's –
Looks like the rumours that intel will be realising the Quad-Core Ivy Bridge Processor on April 23rd was true. BBC News today reported that that Intel has officially introduced the first batch of its next-generation Ivy Bridge processors.
Todays launch includes 13 quad core processors which are mainly based for the Desktop computer but also released was several mobile processors which would fit in to the next generation Macbook family