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100 Solving Problems
If only part of the display is readable
CONNECT AN EXTERNAL MONITOR —
1
Shut down your computer and connect an external monitor to the
computer.
2
Turn 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 139
.
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.
NOTICE: The Drivers and Utilities media may contain drivers for operating systems
that are not on your computer. Ensure that you are installing software appropriate
for your operating system.
Many drivers, such as the keyboard driver, come with your Microsoft
®
Windows
®
operating system. You may need to install drivers if you:
• Upgrade your operating system.
• Reinstall your operating system.
• Connect or install a new device.
Identifying Drivers
If you experience a problem with any device, identify whether the driver is the
source of your problem and, if necessary, update the driver.
1
Click the
Start
button and click
Control Panel
.
2
Under
Pick a Category
, click
Performance and Maintenance
.
book.book Page 100 Tuesday, July 3, 2007 12:31 PM