19 Getting StartedUseful InformationTroubleshootingAppendixHandling and Maintenancez Place the computer on a flat stable surface. Do not place the computer upright. If the computer is exposed to anextremely strong impact, it may become inoperable.z Temperature: Operation: 5 °C to 35 °CStorage: -20°C to 60 °CHumidity: Operation: 30% to 80% RH (No condensation)Storage: 30% to 90% RH (No condensation)Even within the above temperature/humidity ranges, using for a long time in an extreme environment will result inthe product deterioration and will shorten the product life.z Do not place the computer in the following areas, otherwise the computer may be damaged.• Near electronic equipment. Image distortion or noise may occur.• Near magnets or in magnetic fields.• In extremely high or low temperature.z As the computer can become hot during operation, keep it away from items that are sensitive to heat.This computer is designed to minimize shock to parts such as the hard disk drive, but no warranty is provided againstany trouble caused by shock. Be extremely careful when handling the computer.z When carrying the computer:• Turn off the computer.• Remove all external devices, cables, cards and other protrudingthings.• Do not drop or hit the computer against solid objects.• Do not leave the display open.• Do not grip the display part.z When you board an airplane, take the computer with you and never put it in yourchecked luggage. When using the computer on airplane, follow the airline’sinstructions.z When carrying a spare battery, put it in a plastic bag to protect its terminals.z This computer contains a magnet and magnetic products at the locations circledin the illustration at right. Avoid leaving metallic object or magnetic media in con-tact with these areas.z The touch pad is designed to be used with a finger tip. Do not place any object onits surface and do not press down strongly with sharp-pointed or hard objects thatmay leave marks (e.g., nails, pencils and ball point pens).z Avoid any harmful substances such as oil from getting into the touch pad. The cur-sor may not work correctly.z If the computer is being carried in a soft bag with the battery pack removed, avoid undue pressure on the body of thecomputer in a crowded place, etc., as this may result in damage to the LCD. When using peripheral devicesFollow these instructions and the Reference Manual to avoid any damage to the devices. Carefully read the instructionmanuals of the peripheral devices.z Use the peripheral devices conforming to the computer’s specifications.z Connect to the connectors in the correct direction.z If it is hard to insert, do not try forcibly but check the connector’s shape, direction, alignment of pins, etc.z If screws are included, fasten them securely. Preventing your computer from unauthorized use via wireless LAN/ wireless WAN/Bluetooth wireless WAN/Bluetooth>z Before using wireless LAN/ wireless WAN/Bluetooth , make the appropriate security settings such as data encryption. Computrace® SoftwareComputrace® software tracks your stolen computer.Perform the following steps before installing Computrace ® software.z Computrace ® software is not included or installed in this computer.Operation EnvironmentHandling CautionsBottom