Today, after a long time I had the need to swith on my old macbook (the 2006/2007 white model 2ghz). After connecting the macbook to the magsafe I started using it, but after few minutes it froze, trackpad and keyboard stopped work and all seems to be frozen. So I presses the power button for some seconds to switch it off. Then I pressed the power button to switch it on , and since that moment I just heard the hard disk noise that I usually heard 1 time before the system startup , in an infinite loop and the screen remains black, giving no signals. What's the problem? I suppose that my HD died, Am I right? Thanks in advance.