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C HECK THE MOUSE CABLE — Shut down the computer, disconnect the mouse cable and check it for damage, then firmly reconnect the cable.
If you are using a mouse extension cable, disconnect it and connect the mouse directly to the computer.
T O VERIFY THAT THE PROBLEM IS WITH THE MOUSE , CHECK THE TOUCH PAD —
1 Shut down the computer.
2 Disconnect the mouse.
3 Turn on the computer.
4 At the Windows 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 HECK THE SYSTEM SETUP PROGRAM SETTINGS — 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).
T EST THE MOUSE CONTROLLER — 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 Pointing Devices test group in the "Dell
Diagnostics" on page 87.
R EINSTALL THE TOUCH PAD DRIVER —
on page 117.
See "Reinstalling Drivers and Utilities"
Video and Display Problems
Fill out the "Diagnostics Checklist" on page 163 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 HECK THE BATTERY — 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 then turn on the computer.
Troubleshooting
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T EST THE ELECTRICAL OUTLET — Ensure that the electrical outlet is working by testing it with another device, such as a lamp.
C HECK THE A C ADAPTER — Check the AC adapter cable connections. If the
AC adapter has a light, ensure that the light is on.
C ONNECT THE COMPUTER DIRECTLY TO AN ELECTRICAL OUTLET — Bypass power protection devices, power strips, and extension cables to verify that the computer turns on.
A DJUST THE POWER PROPERTIES —
Help and Support.
Search for the keyword sleep in Windows
S WITCH THE VIDEO IMAGE — 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
A DJUST THE BRIGHTNESS — Press <Fn> and the up- or down-arrow key.
M OVE THE EXTERNAL SUBWOOFER AWAY FROM THE COMPUTER OR MONITOR — 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 LIMINATE POSSIBLE INTERFERENCE — halogen lamps, or other appliances.
Turn off nearby fans, fluorescent lights,
R OTATE THE COMPUTER TO FACE A DIFFERENT DIRECTION — glare, which can cause poor picture quality.
Eliminate sunlight
A DJUST THE W INDOWS DISPLAY SETTINGS —
1 Click Start → Control Panel→ Appearance and Personalization→
Personalization → Display Settings.
2 Click the area you want to change or click the Display icon.
Try different settings for Resolution and Colors.
R UN THE V IDEO DIAGNOSTICS TESTS — If no error message appears and you still have a display problem, but the display is not completely blank, run the
Video device group in the "Dell Diagnostics" on page 87, then contact Dell
(see "Contacting Dell" on page 164).
S EE " E RROR M ESSAGES " —
on page 98.
If an error message appears, see "Error Messages"
Troubleshooting
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