Dell Latitude C640 User Manual

To move the cursor, press the track stick. Press up or down to move the cursor to the top or bottom of
the display screen. Press left or right to move the cursor to the left or right of the display screen.
To select an object, tap once on the track stick or use your thumb to press the left track stick button.
To select and move (or drag) an object, position the cursor on the object. Then press and hold the left
track stick button. Leave your thumb on the button and move the object by pressing the track stick in
the desired direction.
To double-click an object, position the cursor on the object and tap twice on the track stick or use your
thumb to press the left track stick button twice.
Customizing the Touch Pad and Track Stick
You can disable the touch pad and track stick or adjust their settings using the Mouse Properties window.
Open the Control Panel and double-click the Mouse icon.1.
In the Mouse Properties window, click the Device Settings tab.2.
If you have a Synaptics driver for the touch pad and track stick:

Dell Latitude C640 Specifications

General

Brand	Dell
Model	Latitude C640
Category	Laptop
Language	English

Summary

Finding Information

Safety Instructions

Crucial safety guidelines for operating the computer and preventing damage.

About Your Computer

Using the Keyboard and Touch Pad

Dell™ AccessDirect™ Button

Touch Pad

Track Stick

Using a Battery

Battery Performance

Information on battery life, optimal usage, and factors affecting performance.

Charging the Battery

Procedures for charging the battery and understanding charging indicators.

Removing a Battery

Step-by-step instructions for safely removing the computer's battery.

Power Management

Management Tips

Power Management Modes

Explanation of standby and hibernate modes for power conservation.

Power Options Properties

Solving Problems

Power Problems

Troubleshooting steps for issues related to the computer's power supply and battery.

Error Messages

Video and Display Problems

Sound and Speaker Problems

Printer Problems

Using the Dell Diagnostics

When to Use the Dell Diagnostics

Guidance on when to perform diagnostic tests for hardware issues.

Starting the Dell Diagnostics

Step-by-step instructions for launching the Dell Diagnostics utility.

Advanced Testing

Adding and Replacing Parts

Adding Memory

Detailed instructions for installing or replacing memory modules in the computer.

Adding a Mini PCI Card

Replacing the Hard Drive

Step-by-step guide for safely removing and installing the computer's hard drive.

Adding a Modem

Passwords

Using a Primary Password

Steps for setting up and using a primary password for computer startup.

Using an Administrator Password

Using a Hard Drive Password

Instructions for setting a password to protect data on the computer's hard drive.

Specifications

Microprocessor

Memory

Ports and Connectors

Battery

Getting Help

Technical Assistance

Procedures for obtaining technical support from Dell for hardware or software issues.

Online Services