Compaq 1600XL - Manual (Page 84)

36 T ROUBLESHOOTING P RESARIO N OTEBOOK M AINTENANCE AND S ERVICE G UIDE 1600XL S ERIES
Presario 1600XL Series
Model 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143, 1600-XL144,
1600-XL146, 1600-XL147, 1600-XL150 XL156, XL157, XL255, XL256, XL257, and XL258
Solving TouchPad/Pointing Device Problems
The following table lists some common causes and solutions for TouchPad/pointing device
problems.
Solving TouchPad/Pointing Device Problems
Problem Probable Cause Solution(s)
TouchPad or mouse
does not work.
Incorrect or no device driver
is installed.
Install the device driver and add
to the AUTOEXEC.BAT file or
CONFIG.SYS file.
The device driver is not
installed in Windows.
Install the TouchPad/mouse driver
in Windows.
External mouse does
not work.
Mouse is not securely
connected or is connected to
an incorrect external
connector.
Ensure that the mouse is securely
connected to the appropriate
external connector.
TouchPad or mouse do
not work even though
the device is enabled
in Windows.
Mouse is not enabled. Type MOUSE at the system
prompt to activate the mouse
device driver.
Add a line in the AUTOEXEC.BAT
file to activate the mouse driver
automatically each time the
computer is turned on or
restarted.
Cable is not properly seated
in TouchPad board.
Reseat cable.
Defective TouchPad board. Replace the TouchPad board.
Defective system board. Replace system board.
Device driver is not correctly
installed in Windows.
Install the appropriate device
driver in Windows.
Cursor skips or moves
abnormally when using
the TouchPad.
The TouchPad needs to be
cleaned.
Clean the TouchPad with a cloth
dampened with alcohol or an
ammonia-based glass cleaner.
Wipe up liquid with a dry cloth.