Sony VAIO PCG-X18, User Manual

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Furniture and posture – Sit in a chair with good back support. Adjust the level of
the chair so your feet are flat on the floor. A footrest may make you more
comfortable. Sit in a relaxed, upright posture and avoid slouching forward or
leaning far backwards.
Viewing angle of the computer’s display – Use the display’s tilting feature to
find the best position. You can reduce eye strain and muscle fatigue by adjusting
the tilt of the display to the proper position. Adjust the brightness setting of the
display as well.
Lighting – Choose a location where windows and lights do not create glare and
reflection on the display. Use indirect lighting to avoid bright spots on the
display. You can also purchase accessories for your display that help reduce
glare. Proper lighting adds to your comfort and work effectiveness.
Placement of an external display – When using an external display, set the
display at a comfortable viewing distance. Make sure the display screen is at eye
level or slightly lower when you are sitting in front of the monitor.