TROUBLESHOOTING MOUSE PROBLEMS
BASIC TROUBLESHOOTING PROCEDURES:
The switch on your mouse may be set to 3 instead 2 as it should be.
Newly added hardware may be conflicting with the mouse port or mouse drivers.
The mouse connection may be loose or not plugged in.
The mouse may be plugged into the wrong port.
Mouse drivers may be corrupt or not installed.
The mouse may not be enabled in Windows 3.xx Setup.
The mouse port in CMOS may be disabled.
These basic steps can resolve or more accurately resolve most mouse
MOUSE CONNECTION LOOSE OR DISCONNECTED
Make sure that the mouse is properly connected to the computer system.
While the system is powered down, unplug the mouse from the computer. Look
down into the plug end of the mouse. Insure that none of the pins are bent
or pushed further back into the plug than any of the others. Plug the mouse
back into the system verifying that you are connecting it to the correct
port and power the system back on.
MOUSE CONNECTED TO THE PROPER PLACE ON THE COMPUTER
Make sure the mouse is plugged into the correct place on the back of the
system. If you have a PS/2 mouse, the mouse connection and the keyboard
connection look identical from the back. Try plugging the mouse into the
oter port and restart the computer to see if that has corrected the problem.
If you have a serial mouse, make sure that the cable is connected to the
correct COM port.
RESOLVING MOUSE PROBLEMS:
MOUSE IDENTIFICATION/CONFIGURATION IN CMOS
If the connection on the system is secure and the pins are correctly aligned,
the mouse port may not be correctly identified in CMOS.
In CMOS you will need to locate the section that contains the Onboard Serial
Port configurations. It will possibly be Advanced CMOS Setup or Integrated
Peripherals. Use the arrow key to highlight one of these selections and
press <ENTER>. Repeat until you find the area containing Onboard Serial
If the mouse is a PS/2 mouse make sure that the PS/2 mouse port is enabled.
If you have a serial mouse, make sure that the comport that corresponds
to your mouse is identified with the correct settings (i.e., COM1 is 3F8h
and COM2 is 2F8h). You can modify the settings by highlighting them with
the arrow key and using the <PAGE UP> or <PAGE DOWN> keys.
Highlight Save settings and exit and press <ENTER> or Follow the on-screen
instructions to Save and Exit Setup.
If the mouse works correctly in Windows and MS-DOS screens but not in other
applications, make sure that the mouse driver is installed in that application.
Contact the manufacturer or vendor of that application for further instructions.
If the mouse does not work in any application except Windows, the mouse
driver may not be correctly installed or may not be installed at all.
MOUSE DRIVER INSTALLATION (WINDOWS 3.xx ONLY)
Once you are sure that the mouse is connected securely to the computer
and that CMOS is identifying the mouse, the drivers are the next thing
to check. You can reinstall the mouse drivers over themselves without problems
as long as the driver versions are the same.
Windows 95 usually will not require a mouse driver to be installed in
your autoexec.bat or config.sys. Some 3rd party mouse packages
may use a driver to enable full functionality or special features. Consult
the manufacturer of the mouse for detailed instructions on using the device.
With the computer booted to the DOS prompt
Insert your mouse driver diskette into your floppy drive.
Follow the on-screen directions for installing the mouse driver
Restart your computer.
NEWLY ADDED HARDWARE
If you recently added a new hardware device to the system such as a modem,
scanner, etc., remove the new device to see if the mouse functionality
returns. If the mouse starts working correctly, the new device is conflicting
with the mouse. Contact the manufacturer of the new device for assistance
THIS POINTER DEVICE REQUIRES A NEWER VERSION
This error message can appear if you have an invalid type of mouse, such
as Logitech or Genius series, selected in Windows Setup when you have a
Microsoft Mouse on the system. Changing the mouse to Microsoft or IBM PS/2
mouse will remedy the problem.
MOUSE PORT DISABLED OR MOUSE NOT PRESENT
This error message usually appears as the system boots up. Check the mouse
connection on the computer and check that the serial port the mouse is
connected to is identified and configured correctly in CMOS.