C
H EC K T HE M O U S E C A BLE
— Shut down the computer. Disconnect the mouse cable, check it for damage,
and
firmly reconnect the
cable.
If
you are using a mouse extension cable, disconnect
it
and connect
the
mouse directly
to the computer.
T
O V E RIF Y
T H A T
THE P R OBL E M
IS W I T H
T H E
M O U S E
,
C H E CK TH E T O U C H
P A D
—
1 Shut down
the computer.
2 Disconnect
the mouse.
3
Turn
on
the computer.
4
At the
W
i
ndows
desktop, use
the
touch pad
to
move
the
cursor around, select an icon, and open
it.
If the
touch pad operates correctly,
the
mouse may be
defective.
C
H EC K T H E S YS T E M S ETU P P ROG R A M S ETT I NGS
—
Verify
that the system setup program lists the correct device
for the pointing device option. (The computer automatically recognizes a USB mouse without making any
setting
adjustments.)
For more information on using the system setup program, see "System Setup Program" on page 93.
T
E S T T H E M O U S E C O N T R O L L E R
— To test the mouse controller (which affects pointer movement) and
the
operation of the touch pad or mouse buttons, run the Mouse test in the
Po
i
n
t
ing
Devices
test group in the
Dell
Diagnostics (see "Dell Diagnostics" on page
73).
R
EIN STA L L T H E T O U C H
P A D
D RI V ER
— See "Reinstalling Drivers and Utilities" on page 100.
V
i
deo
and Display
Problems
Fill out the
Diagnostics Checklist (see "Diagnostics Checklist"
on
page 143) as
you complete
these
checks.
CAUTION:
Before you begin any of the procedures
in
this section,
follow
the safety instructions
in
the
Product
Information
Guide
.
If
the display
is blank
NOTE:
If
you are using
a
program that requires
a
higher resolution than your computer supports,
it is
recommended that you attach an external monitor to your
computer
.
C
H EC K T HE B A TTE R Y
— If you are using a battery to power your computer, the battery charge may be
depleted.
Connect the computer to an electrical outlet using the AC adapter, and turn on the
computer
.
T
E S T T H E E L E C T R I CA L O U T L E T
— Ensure that the electrical outlet is working by testing it with another device,
such
as a
lamp.
C
H E C K T H E
A C
A D A P T E R
— Check the AC adapter cable connections. If the AC adapter has a light, ensure
that
the light is
on.
C
O N N E C T T H E C O M P U T E R D I R E C T L Y T O
A N
E L E CT R I C A L O U T LE T
—
Bypass
power protection devices, power
strips,
and the extension cable to
verify
that the computer turns
on.
A
D JUS T T HE P O W ER P R OPE R T IES
— Search for the
keyword
standby
in the Windows Help and Support
Center
.
Click Start or
→
Help
and
Support.
S
W I TC H T H E V I D E O
I MA G E
— If your computer is attached to an external monitor, press
<Fn><F8>
to
switch
the video image to the display.
T
r
oubleshooting
91
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