Dell Precision T3400 (Late 2007) - Manual (Page 122)

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Troubleshooting
• Verify that the mouse cable is connected as shown on the setup diagram for your
computer.
R ESTART THE COMPUTER —
1 Simultaneously press <Ctrl><Esc> to display the Start menu.
2 Press <u>, press the up- and down-arrow keys to highlight Shut down or Turn
Off, and then press <Enter>.
3 After the computer turns off, reconnect the mouse cable as shown on the setup
diagram.
4 Turn on the computer.
T EST THE MOUSE — Connect a properly working mouse to the computer, then try
using the mouse.
C HECK THE MOUSE SETTINGS —
Windows XP:
1 Click Start → Control Panel→ Mouse.
2 Adjust the settings as needed.
Windows Vista:
1 Click Start → Control Panel→ Hardware and Sound→ Mouse.
2 Adjust the settings as needed.
R EINSTALL THE MOUSE DRIVER — See "Drivers" on page 131.
R UN THE H ARDWARE T ROUBLESHOOTER — See "Hardware Troubleshooter" on
page 107.
Network Problems
CAUTION:
Before you begin any of the procedures in this section, follow the
safety instructions in the Product Information Guide.
C HECK THE NETWORK LIGHT ON THE FRONT OF THE COMPUTER — If the link
integrity light is off (see "Controls and Lights" on page 35), no network
communication is occurring. Replace the network cable.
C HECK THE NETWORK CABLE CONNECTOR — Ensure that the network cable is firmly
inserted into the network connector on the back of the computer and the network
jack.
R ESTART THE COMPUTER AND ATTEMPT TO LOG ON TO THE NETWORK AGAIN
C HECK YOUR NETWORK SETTINGS — Contact your network administrator or the
person who set up your network to verify that your network settings are correct and
that the network is functioning.