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Maintenance & Service Guide
Presario 1600 Series Portable Computers

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Touch Pad Solutions

Solving Minor Problems

Some minor problems and possible solutions are outlined here.   If the problem appears related to a software application, check the documentation provided with the software.

Solving Touch Pad/Pointing Device Problems

Some common causes and solutions for Touch Pad/pointing device problems are listed in the following table.

Solving Touch Pad/Pointing Device Problems
Problem Cause Solution(s)
Touch Pad 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 Touch Pad/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.
Touch Pad or mouse does not work even though the device is enabled in Windows. Mouse is not enabled. Enter SYNTOUCH.COM  at the system prompt to activate the mouse device driver.(C:\WINDOWS\
DOSSTART.BAT)
Add a line in the AUTOEXEC.BAT file to automatically activate the mouse device driver each time computer is turned on or restarted.
Cable not properly seated in Touch Pad board. Reseat cable.
Defective Touch Pad board. Replace Touch Pad 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 Touch Pad. The Touch Pad needs to be cleaned. Clean the Touch Pad with a cloth dampened with alcohol or an ammonia-based glass cleaner. Wipe up liquid with a dry cloth.

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