Grey screen and flashing question mark

This is a discussion on Grey screen and flashing question mark within the MacBook forums, part of the Macbook Forum category; I have a 13" MacBook produced in early 2008 and running Lion 10.7.5. I tried to switch it on and saw a grey screen with ...

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  1. #1
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    Grey screen and flashing question mark

    I have a 13" MacBook produced in early 2008 and running Lion 10.7.5. I tried to switch it on and saw a grey screen with flashing question mark. Using my iMac I found out how to safe boot and then ran Disk Utility. Verify disk stated laptop was all right but on running disk permissions the first line stated: SUID file "System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/Mac OS/ARDAgent" has been modified and will not be repaired.

    I have no idea what this means but could this be the cause of the grey screen. If so, what should I do to fix the problem? If not, what elso could I do to establish what is wrong with my laptop?

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  3. #2
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    There are numerous causes of the Grey Screen of Death on a Mac, so in the first instance I will point you in the direction of the Apple Support site dealing with the issue:

    Mac OS X: Gray screen appears during startup

    Try out some of the other remedies suggested here and let us know how you get on.
    'Deep Thought' - Mac Mini Late 2018- macOS Mojave (10.14.5)
    'Marvin' - Mac Mini Late 2014 - macOS Mojave (10.14.5)
    'Orac' - MacBook Pro 13" Mid 2012 - macOS Mojave (10.14.5)

    iPhone 6S - iOS 12.3.1
    iPad Pro 12.9" - iOS 12.3.1

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