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Q: black screen at startup

Hello.  I have a Macbook Pro (2011); when I press the power button I hear the chime - but the screen stays black. A few times I have a gray screen that provides password help - although I never saw the screen to input my password. I go through the process and change my password, but I have to reboot the system..... back to the black screen. Any suggestions? 

Posted on Sep 5, 2016 6:09 PM

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Q: black screen at startup

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