Hi Guys, wondering if you can help me with this. Over the past few days my MBP has been running slowly, and the beachball has been coming up a fair few times, something which I haven't seen in general use on there since I bought it in May. So obviously I was concerned with that, but thought it might be a problem with Firefox as it was mainly happening whilst browsing the internet. Obviously I was wrong, because I came to turn it on tonight and it is not starting up. The start up noise comes on, then the Apple logo but it just gets stuck on the screen with the spinning dial. I read that I should perhaps start it in Safe Mode, so I held down the shift key, and the little progress bar came up underneath the spinning dial but did nothing and the computer turned itself off. Now every time I turn the MBP on the Apple logo, spinning dial, and progress bar come up...which shouldn't happen, and then it turns itself off after a while. What should I do? It seems pretty serious to me, I could be wrong. The worst thing is I haven't backed it up in ages, and I'm concerned I might lose everything. Any help is much appreciated!