Appendix 175• To clean your monitor screen, lightly dampen a soft, clean cloth withwater. You can also use a special screen-cleaning tissue or solution suitablefor the monitor’s antistatic coating.• Wipe the keyboard, computer, and monitor plastics with a soft cleaningcloth moistened with a solution of three parts water and one partdishwashing detergent.Do not soak the cloth or let water drip inside your computer or keyboard.Touch Pad1 Shut down and turn off your computer (see "Turning Off Your Computer"on page 133).2 Disconnect any attached devices from the computer and from theirelectrical outlets.3 Remove any installed batteries (see "Battery Performance" on page 45).4 Moisten a soft, lint-free cloth with water, and wipe it gently across thesurface of the touch pad. Do not allow water from the cloth to seepbetween the touch pad and the surrounding palm rest.MouseNOTICE: Disconnect the mouse from the computer before cleaning the mouseIf your screen cursor skips or moves abnormally, clean the mouse.Cleaning an Optical MouseClean the outside casing of the mouse with a cloth moistened with a mildcleaning solution.MediaNOTICE: Always use compressed air to clean the lens in the optical drive, andfollow the instructions that come with the compressed air product. Never touch thelens in the drive.If you notice problems, such as skipping, with the playback quality of yourmedia, try cleaning the discs.