The screen is blank or difficult to read
E N S U R E T H A T T H E D I S P L A Y I S T U R N E D O N — See "Front View of the Computer" on
page 15.
TE S T T H E E L E C T R I C A L O U T L E T — Ensure that the electrical outlet is working by testing it with another device, such as a lamp.
R O T A T E T H E D I S P L A Y T O E L I M I N A T E S U N L I G H T G L A R E A N D P O S S I B L E I N T E R F E R E N C E
A D J U S T T H E W I N D O W S D I S P L A Y S E T T I N G S —
Windows Vista:
1 Click Start 
→ Control Panel→ Hardware and Sound→ Personalization→ Display Settings.
2 Adjust Resolution and Colors settings, as needed.
Drive Problems
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
E N S U R E T H A T M I C R O S O F T ® W I N D O W S ® R E C O G N I Z E S T H E D R I V E —
Windows Vista™:
• Click the Windows Vista Start button 
and click Computer.
If the drive is not listed, perform a full scan with your antivirus software to check for and remove viruses. Viruses can sometimes prevent Windows from recognizing the drive.
TE S T T H E D R I V E —
•Insert another disk to eliminate the possibility that the original drive is defective.
•Insert bootable media and restart the computer.
C L E A N T H E D R I V E O R D I S K — See "" on page 49.
C H E C K A N Y A C C E S S I B L E C A B L E C O N N E C T I O N S
R U N T H E H A R D W A R E TR O U B L E S H O O T E R — See "Troubleshooting Software and Hardware Problems in the Microsoft® Windows® Vista™ Operating Systems" on page 78.
R U N T H E D E L L D I A G N O S T I C S — See "Dell Diagnostics" on page 65.
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Troubleshooting
