Mouse does not respond to movement or is too slow.
Cause Solution
Program in use has stopped responding to commands. Shut down the computer using the keyboard then restart the
computer.
Mouse is not detected. Unplug and reconnect the mouse cable to your computer.
Mouse may need cleaning. Remove the roller ball cover on the mouse and clean the
internal components.
Surface under the mouse is too smooth for the roller ball to
work effectively.
Use a mouse pad or other rough surface under the mouse.
Mouse may need repair. See the Worldwide Limited Warranty for terms and
conditions.
Computer is in Hibernate mode. Press the power button to resume from Hibernate mode.
CAUTION: When attempting to resume from Hibernate
mode, do not hold down the power button for more than four
seconds. Otherwise, the computer will shut down and you
will lose any unsaved data.
Mouse will only move vertically, horizontally, or movement is jerky.
Cause Solution
Mouse roller ball or the rotating encoder shafts that make
contact with the ball are dirty.
Remove roller ball cover from the bottom of the mouse and
clean the internal components with a mouse cleaning kit
available from most computer stores.
Optical mouse does not track cursor well.
Cause Solution
Surface under mouse is not conducive to optics. 1. Gently wipe the light sensor lens on the bottom of the
mouse with a lint-free cloth (not paper).
2. Place a mouse pad, white sheet of paper, or other less
reflective surface under the mouse.
Solving Keyboard and Mouse Problems
167
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