The levels of mouse troubleshooting move from configuration problems to software problems including command line, windows, and applications to hardware problems.
Maintenance of the mouse if fairly simple. Most of the problems with mice involve the trackball. As the mouse is moved across the table, the trackball picks up dirt or lint, which can hinder the movement of the trackball, typically evident by the cursor periodically freezing and jumping onscreen. On most mice, you can remove the trackball from the mouse by latching mechanism on it bottom. Twisting the latch counter clockwise enables you to remove the trackball. Then you can clean dirt out of the mouse.
Basic Mouse Checks
When the mouse does not work in a windows system, restart it and move into safe mode by pressing the F5 function key when the starting windows message displays This action starts the operationg system with the most basic mouse driver available.
If the mouse will not operate in safemode, restart the system and check the CMOS setup screen during boot up for the presence of the serial port that the mouse is connected to.
If the mouse work in safe mode, click the mouse icon in the control panel to check its configuration and settings. follow this by checking the port configuration in window control panel. Consult the device manager entry under the control panels system icon. Select the ports option, click the COMs properties option in the menu, and click resources. Make certain that the selected IRQ and address range match that of the port.
Click on the mouse entry in the device manager and double click its driver to obtain the mouse properties. Move to the resources tab and check the IRQ and base address settings for the mouse in windows. Compare these settings to the actual configuration settings of the hardware. If the differ, change the IRQ or base address setting in Windows to match those of the installed hardware.
If the correct driver is not available in the windows list, place the manufacturers driver disk in the CD/DVD Drive and load it using the other mouse. If the OEM driver fails to operate the mouse in windows, contact the mouse manufacturer for an updated windows driver. windows normally supports only mice on COM1 and COM2. If several serial devices are being used in the system, you might have to establish alternative IRQ settings for COM3 and COM4
In older systems, check the directory structure of the system for a mouse directory. Also, check for AUOTEXEC.BAT and CONFIG.SYS files that may contain conflicting device drivers. Two common driver files may be present; the MOUSE.COM file called for in the AUTOEXEC.BAT file; and the MOUSE.SYS file referenced in the CONFIG.SYS file. If these files are present and have mouse lines that do not begin with a REM statement, they could be overriding the settings in the operating system. In particular, look for a Device command associated with the mouse.
Mouse Hardware Checks
If the 2/3 button switch and driver setup is correct, you must divide the port circuitry in half. For most systems, this involves isolating the mouse from the serial port. Just replace the mouse to test its electronics.
If the replacement mouse works, the original mouse is probably defective. If the electronics are not working properly. few options are available for servicing the mouse. It may need a cleaning, or a new trackball. However, the low cost of a typical mouse generally makes it a throwaway item if simple cleaning does not fix it.
Maintenance of the mouse if fairly simple. Most of the problems with mice involve the trackball. As the mouse is moved across the table, the trackball picks up dirt or lint, which can hinder the movement of the trackball, typically evident by the cursor periodically freezing and jumping onscreen. On most mice, you can remove the trackball from the mouse by latching mechanism on it bottom. Twisting the latch counter clockwise enables you to remove the trackball. Then you can clean dirt out of the mouse.
Basic Mouse Checks
When the mouse does not work in a windows system, restart it and move into safe mode by pressing the F5 function key when the starting windows message displays This action starts the operationg system with the most basic mouse driver available.
If the mouse will not operate in safemode, restart the system and check the CMOS setup screen during boot up for the presence of the serial port that the mouse is connected to.
If the mouse work in safe mode, click the mouse icon in the control panel to check its configuration and settings. follow this by checking the port configuration in window control panel. Consult the device manager entry under the control panels system icon. Select the ports option, click the COMs properties option in the menu, and click resources. Make certain that the selected IRQ and address range match that of the port.
Click on the mouse entry in the device manager and double click its driver to obtain the mouse properties. Move to the resources tab and check the IRQ and base address settings for the mouse in windows. Compare these settings to the actual configuration settings of the hardware. If the differ, change the IRQ or base address setting in Windows to match those of the installed hardware.
If the correct driver is not available in the windows list, place the manufacturers driver disk in the CD/DVD Drive and load it using the other mouse. If the OEM driver fails to operate the mouse in windows, contact the mouse manufacturer for an updated windows driver. windows normally supports only mice on COM1 and COM2. If several serial devices are being used in the system, you might have to establish alternative IRQ settings for COM3 and COM4
In older systems, check the directory structure of the system for a mouse directory. Also, check for AUOTEXEC.BAT and CONFIG.SYS files that may contain conflicting device drivers. Two common driver files may be present; the MOUSE.COM file called for in the AUTOEXEC.BAT file; and the MOUSE.SYS file referenced in the CONFIG.SYS file. If these files are present and have mouse lines that do not begin with a REM statement, they could be overriding the settings in the operating system. In particular, look for a Device command associated with the mouse.
Mouse Hardware Checks
If the 2/3 button switch and driver setup is correct, you must divide the port circuitry in half. For most systems, this involves isolating the mouse from the serial port. Just replace the mouse to test its electronics.
If the replacement mouse works, the original mouse is probably defective. If the electronics are not working properly. few options are available for servicing the mouse. It may need a cleaning, or a new trackball. However, the low cost of a typical mouse generally makes it a throwaway item if simple cleaning does not fix it.
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