Texas Instruments TravelMate 4000M User Manual page 91

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Changes in temperature and humidity can cause condensation. Allow
the computer to return to room temperature, and inspect the LCD for
condensation before turning on the computer. If the temperature
change is greater than 18 F (10 C), allow the computer to come to
room temperature slowly. If possible, leave the computer for 30
minutes in an environment with a temperature between outside and
room temperatures.
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Always carry the computer in a protective case.
Cautions:
When packing the computer, do not pack items next to its top cover. Too
much pressure against the top cover can damage the LCD.
Do not travel with a floppy in the floppy drive. This can damage the drive
head.
Tips for the Traveler
5-3