System maintenance and user support56 Acer d100 Portable NavigatorStorage precautions• Do not store your device anywhere it may be exposed to water or inconditions of high humidity.• When the device is not in use for an extended period of time, bring itindoors and store it in some location with a temperature range of -30° to70°C (41° to 158°F).Accessories and repair precautions• Only Acer authorized accessories should be use with the device. The useof incompatible accessories could result in bodily injury and/or damageto the device. The use of unauthorized accessories will also void yourwarranty.• Never attempt to disassemble, repair or make any modification to yourdevice. Refer all repair needs to your local Acer dealer.Cleaning your Acer d100 series• Use a damp soft dry cloth to wipe the device’s casing (not the displayscreen). Never use organic solvents such as benzene or paint thinner toclean your device. Use of these solvents can cause deformation ordiscoloration.• Use a soft, clean, lint-free cloth to clean the display screen. MoistenedLCD screen wipes could also be used as required.Troubleshooting your Acer d100 seriesRecalibrating the screenIf while using your device, you discover tapping an item doesn’t bring up theappropriate response, it means your device has lost its calibration.Recalibrate the screen.