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Computing tips . Save your work frequently. Your work stays in the computer’s temporary memory until you save it to the internal storage drive. If the network you are using goes down and you must restart your computer to reconnect, you will lose all work since you last saved. See “Saving your work” on page 59 for further information. HINT: Some applications have an automatic save feature that can be activated. This feature saves your file to the internal storage drive at preset intervals. See your software documentation for details. . Back up your files to external media on a regular basis. Label the backup copies clearly and store them in a safe place. It is easy to put off backing up because it takes time. However, if your internal storage drive suddenly fails, you will lose all the data on it unless you have a separate backup copy. For more information, see “Data and system configuration backup in the Windows® operating system” on page 117. 53 54 54 54 Using the wireless mouse . Use Error-checking and Disk Defragmenter regularly to check and optimize disk space and improve performance. . Scan all new files for viruses. This precaution is especially important for files you receive via external media, email, or download from the Internet. . Take frequent breaks to avoid repetitive-motion injuries and eyestrain. . Do not turn off the computer if a drive indicator light indicates a drive is active. Turning off the computer while it is reading from or writing to a disk may damage the disk, the drive, or both. NOTE The Windows® operating system records information, such as your desktop setup, during its shutdown procedure. If you do not let the Windows® operating system shut down normally, details such as new icon positions may be lost. Using the wireless mouse Your computer comes with a wireless mouse. The wireless receiver comes installed on your computer. Scroll wheel Battery light (Sample Illustration) Mouse Learning the Basics Learning the Basics Using the wireless mouse Replacing the batteries Batteries are required to power the wireless mouse. The battery light glows red when the battery power is low. To replace the batteries: 1 Save your work and turn the mouse upside down. Battery cover Mouse ON/OFF switch Connect button (Sample Illustration) Mouse underside 2 Slide the mouse ON/OFF switch on the underside to the OFF position. 3 Slide the Battery cover off. 4 Always replace both batteries at the same time with fresh ones. 5 Replace the battery cover. 6 Slide the mouse ON/OFF switch to the ON position. If a battery is leaking or its case is cracked, put on protective gloves to handle it, and discard it immediately. Always dispose of used battery packs in compliance with all applicable laws and regulations. Put insulating tape, such as cellophane tape, on the electrode during transportation to avoid a possible short circuit, fire or electric shock. Failure to do so cou...

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