I just bought an macbook pro several weeks ago, it should be Mac OS X Lion, 10.8 I guess. This morning, after I press the power button, it keeps staying at a grey screen with an apple logo and a spinning progress disk, and refused to log in, I've been waiting for a long time. I forced to shut it down and use shift key and press power button again, it did not work, and I shut down again and with option key pressed and I start up again, and it did not work.
What should I do? Thanks