Logitech has released an RF- (radio frequency) based serial, cordless
mouse called the Cordless Mouseman. Standard mouse troubleshooting
techniques generally apply with this mouse; however, some additional
considerations should be taken into account when troubleshooting this
In addition to standard troubleshooting techniques, follow these steps
when troubleshooting the Logitech Cordless Mouseman:
- Verify that the mouse and the receiver are on the same horizontal
plane (that is, both are on the desktop). It is acceptable for the
receiver to be out of the line-of-sight of the mouse (that is
behind the CPU); however, both should be on the same horizontal
plane for proper operation.
- Verify that the mouse is no greater than 2 meters (about 5 feet)
from the receiver because this is the maximum reception distance
for the Cordless Mouseman.
- Temporarily remove any possible source of RF interference, such as
a cordless phone or other transmitting device, from the general
- Check for the correct mouse driver. The latest version of the
Cordless Mouseman is version 5.01, which is dated 3/19/91 and has a
file size of 33,977 bytes.
- Verify that the mouse (transmitter) and the receiver are operating
at the same frequency by removing the battery from the mouse for a
few seconds and then placing it back into the mouse. This will
reset both the mouse and the receiver to frequency 4. Frequencies
1-7 are available and can be selected manually so that the receiver
and mouse match each other at another frequency if desired. To set
the frequency manually, you must be at the MS-DOS command prompt.
Do the following:
- Take the cover off of the mouse and note the number of flashes
per second that the green light indicates--this number is the
- Use the left mouse button to set the frequency lower and use the
right mouse button to set the frequency higher.
- Turn the dial on the receiver to the same frequency number that
you set the mouse to.
- Review the AUTOEXEC.BAT file to ensure that there is a MODE command
to initialize the applicable COM port for 9600 bits per second (BPS)
(that is, mode com1:96,n,8,1,p).
Also, from Windows, review the Settings option (accessed by
choosing the Ports icon in Control Panel) to ensure that the port
being used is set at 9600 BPS. This setting is required for the
Cordless Mouseman to operate correctly.
- Make sure the COM ports are correctly configured. The Logitech
virtual mouse driver (LVMD.386) is hard coded for the standard base
port addresses and interrupt requests (IRQs). The base addresses
for COM1 and COM2 should be 3F8h and 2F8h, respectively. If the COM
addresses are not configured correctly, or the IRQs are not
standard, the Logitech series mouse fails to work in 386 enhanced
- If you are running Windows 3.1 in 386 enhanced mode, you may
encounter problems, such as an unresponsive pointer, when the
MS-DOS Prompt or any MS-DOS-based application is run in a window.
To correct this problem, do the following:
- Change the baud-rate setting for the mouse driver. To do this,
add the following line to the [LogiMouse] section of the
- Include the 1200 option on the command line that loads the
MS-DOS Logitech mouse driver (which is provided with Windows
3.1) as follows:
Add the above line to your AUTOEXEC.BAT file to load the mouse
driver each time you start your system. The next time you start
Windows, your mouse should work correctly.
NOTE: The command lines logimenu
, which are usually loaded from the AUTOEXEC.BAT file, are
included with this mouse as well as other Logitech mice. They are
terminate-and-stay-resident programs (TSRs), and as such, may cause
problems with Windows installation and/or operation.
For more information, contact Logitech Product Support.
The Logitech product included here is manufactured by a vendor
independent of Microsoft; we make no warranty, implied or otherwise,
regarding this product's performance or reliability.
Article ID: 73344 - Last Review: September 24, 2011 - Revision: 3.0
- Microsoft Windows 3.0 Standard Edition