Specifications

54 Chapter 4 Problem, Meet Solution
If your MacBook freezes during startup, or you see a ashing question mark, or the
screen is dark and the sleep indicator light is glowing steadily (not in sleep)
Theashingquestionmarkusuallymeansthatthecomputercan’tndthesystem
softwareontheharddiskoranydisksattachedtothecomputer.
Waitafewseconds.Ifthecomputerdoesn’tstartup,shutitdownbyholdingdownthe
power(®)buttonforabout8to10seconds.Disconnectallexternalperipheralsandtry
restartingbypressingthepower(®)buttonwhileholdingdowntheOptionkey.When
yourcomputerstartsup,clicktheharddiskicon,andthenclicktherightarrow.After
thecomputerstartsup,openSystemPreferencesandclickStartupDisk.Selectalocal
MacOSXSystemfolder.
Â Ifthatdoesn’twork,tryusingDiskUtilitytorepairthedisk:
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InserttheMac OS X Install DVDintoyourcomputer.
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RestartyourcomputerandholddowntheCkeyasitstartsup.
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Whenprompted,chooseyourpreferredlanguage.
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Whenthenextscreenappears,chooseDiskUtilityfromtheUtilitiesmenuinthe
menubar.WhenDiskUtilityopens,followtheinstructionsintheFirstAidpaneto
seeifDiskUtilitycanrepairthedisk.
IfusingDiskUtilitydoesn’thelp,youmightneedtoreinstallyourcomputer’ssystem
software.See“ReinstallingtheSoftwareThatCamewithYourMacBook”onpage62.