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S W I T C H T H E V I D E O I M A G E If your computer is attached to an external monitor, press <Fn><F8> to switch the video image to the display.

If the display is difficult to read

AD J U S T T H E B R I G H T N E S S Press <Fn> and the up- or down-arrow key

M O V E T H E E X T E R N A L S U B W O O F E R A W A Y F R O M T H E C O M P U T E R O R M O N I T O R If your external

speaker system includes a subwoofer, ensure that the subwoofer is at least 60 cm (2 ft) away from the computer or external monitor.

E L I M I N A T E P O S S I B L E I N T E R F E R E N C E Turn off nearby fans, fluorescent lights, halogen lamps, or other appliances.

R O T A T E T H E C O M P U T E R T O F A C E A D I F F E R E N T D I R E C T I O N Eliminate sunlight glare, which can

cause poor picture quality.

AD 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

1Click the Start button and then click Control Panel.

2Click Appearance and Themes.

3Click the area you want to change or click the Display icon.

4Try different settings for Color quality and Screen resolution.

S E E "E R R O R M E S S A G E S " — If an error message appears, see page 83.

If only part of the display is readable

C O N N E C T A N E X T E R N A L M O N I T O R

1Shut down your computer and connect an external monitor to the computer.

2Turn on the computer and the monitor and adjust the monitor brightness and contrast controls.

If the external monitor works, the computer display or video controller may be defective. Contact Dell. See "Contacting Dell" on page 145.

Drivers

What Is a Driver?

A driver is a program that controls a device such as a printer, mouse, or keyboard. All devices require a driver program.

A driver acts like a translator between the device and any other programs that use the device. Each device has its own set of specialized commands that only its driver recognizes.

Dell ships your computer to you with required drivers already installed—no further installation or configuration is needed.

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Solving Problems

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Dell 140M, PP19L Drivers, If the display is difficult to read, If only part of the display is readable, What Is a Driver?