Trackball/Mouse Problems - Compaq LTE Elite Maintenance And Service Manual

Table 2-32. Trackball/Mouse Problems
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Problem
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Trackball or
mouse does not
work.
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Internal
trackball does
not work.
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Mouse does not
work.
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Trackball or
mouse does not
work even though
the device driver
is in the PATH
command of the
AUTOEXEC.BAT
file.
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Cursor skips or
moves abnormally
when using a
trackball or
mouse.
Cause
Incorrect or no device
driver is installed.
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The device driver is not
installed in Windows.
An external pointing
device is connected to
the computer and the
system has disabled the
internal trackball.
Mouse is not securely
connected or is
connected to an
incorrect external
connector.
Mouse device driver is
not activated (loaded
into memory) in MS-DOS.
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Display cable not
properly seated in
trackball board.
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Defective trackball
board.
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Defective display cable.
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Defective system board.
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Mouse device driver is
not correctly installed
in Windows.
The ball, rollers, or
tracking post in the
trackball or mouse need
cleaning.
Solution(s)
Install the device driver
and add to the AUTOEXEC.BAT
file or CONFIG.SYS file.
Install the Compaq mouse
driver in Windows.
Disconnect the external
pointing device and restart
the computer.
Ensure that the mouse is
securely connected to the
appropriate external
connector.
Enter MOUSE at the system
prompt to activate the mouse
device driver.
---------------------------
Add a line in the
AUTOEXEC.BAT file to
automatically activate the
mouse device driver each
time the computer is turned
on or restarted.
Reseat cable.
Replace trackball board.
Replace display cable.
Replace system board.
From Windows, run Computer
Setup and select the select
the proper mouse driver.
Clean the ball in the
trackball or mouse
(Appendix G).