Actions:
•Disableanybackgroundprograms,suchasAntiVirusorDesktopThemes.
•Ensurethatvideoresolutionissettolessthan1152x864.
Iftheseactionsdonotcorrecttheproblem,andyouneedtechnicalassistance,see“LenovoSupport
Website”onpage29.
Invaliddiscornodiscfoundmessage
Symptom:Invaliddiscornodiscfoundmessage
Actions:
•EnsurethataDVDdiscisinthedrivewiththeshinysideofthediscfacingdown.
•Ensurethatvideoresolutionissettolessthan1152x864.
•OncomputersthathaveaCD-ROMorCD-RWdriveinadditiontoaDVD-ROMdrive,makesurethatthe
DVDdiscisinthedrivelabeled“DVD”.
Iftheseactionsdonotcorrecttheproblem,andyouneedtechnicalassistance,see“LenovoSupport
Website”onpage29
.
Intermittentproblems
Symptom:Aproblemoccursonlyoccasionallyandisdifculttorepeat.
Actions:
•Verifythatallcablesandcordsaresecurelyconnectedtothecomputerandattacheddevices.
•Verifythatwhenthecomputerison,thefanisnotblocked(thereisairowaroundthefan),andthefanis
working.Ifairowisblockedorthefanisnotworking,thecomputermightoverheat.
•IfSCSIdevicesareinstalled,verifythatthelastexternaldeviceineachSCSIchainisterminatedcorrectly.
(SeeyourSCSIdocumentation.)
Iftheseactionsdonotcorrecttheproblem,andyouneedtechnicalassistance,see“LenovoSupport
Website”onpage29
.
Keyboard,mouse,orpointingdeviceproblems
Selectyoursymptomfromthefollowinglist:
•“Allorsomekeysonthekeyboarddonotwork”onpage39
•“Themouseorpointingdevicedoesnotwork”onpage40
•“Thepointeronthescreendoesnotmovesmoothlywiththemouse”onpage40
•“Thengerprintreaderdoesnotwork”onpage40
•“Thewirelesskeyboarddoesnotwork”onpage41
Allorsomekeysonthekeyboarddonotwork
Symptom:Allorsomekeysonthekeyboarddonotwork.
Actions:
•Verifythatthekeyboardcableissecurelyconnectedtothecorrectconnectoronthecomputer.
•IfyouareusinganEnhancedPerformanceUSBkeyboardandoneormoreoftheRapidAccessbuttons
aretheonlykeysthatarenotworking,thesebuttonsmighthavebeendisabledorhavenotbeenassigned
Chapter5.Troubleshootinganddiagnostics39
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