Apple MC372LL/A Laptop User Manual


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52 Chapter 4 Problem, Meet Solution
If your MacBook Pro freezes during startup, or you see a ashing question mark,
or the display 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soonstartup,shutitdownbypressing
andholding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.
 Ifthatdoesn’twork,tryusingDiskUtilitytorepairthedisk:
•
InserttheMac OS X Install DVDintoyourcomputer.
•
RestartyourcomputerandholddowntheCkeyasitstartsup.
•
ChooseInstallerfromthemenubar,andthenchooseOpenDiskUtility.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Pro”onpage60.
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