Ok so my macbook just froze up on me, and I shut it off manually. However, when I tried to start it back up it would not boot up. I am just receiving a message telling me " You need to restart your computer. Hold down the Power button for several seconds or press the Restart button. " I did what the message told me to do, and when I started the computer back up I just received the same exact message. I tried to take the battery out and hold down the power button to discharge any electricity in the laptop, and then I plugged in the power cable with the battery still out, and I am still receiving the same error message. I have tried the same process a couple of times and put the battery back in and then I decided to try inserting the Installation DVD, and it did nothing different then what I have been getting. Does anyone have any ideas or advice?