Getac B300 User Manual page 119

To remove hard to remove dirt, blow some steam on the particular area
and gently wipe away using a soft cloth.
Turn off the computer power when cleaning the display. Cleaning the
display with the power on may cause improper operation.
Use the touchscreen within the intended area only. The display area and
touchscreen operating area is the same. Using it beyond the allowed
area may cause damage to the display and result in improper operation.
Do not use excessive force on the display. Avoid moving the computer
while holding the display or twisting the display. Avoid placing objects
on top of the display as this may cause the glass to break thereby
damaging the display.
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Using the touchscreen during low temperature (less than 5 C) may cause
a slower response time, this is normal. A normal response time may be
restored upon returning to room temperature.
When there is noticeable discrepancy in the operation of the
touchscreen function (wrong location on intended operation or
improper display resolution), refer to the Windows online Help for
instructions on recalibrating the touchscreen display.
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Caring for the Computer