Technical information

Attaching an External Numeric Keypad or a Mouse
Using the Mouse and Other Pointing Devices
Note:
The appropriate software must have
been loaded already.
A serial mouse connected to the serial port, or a device, that is not
compatible with the PS/2 Mouse, can be connected to the external
input-device connector. Some mouse types require the TrackPoint
III to be set to Disable to use them. Do the following to disable the
TrackPoint III.
OS/2
WIN
With OS/2 or Windows, do the following:
1 Start the ThinkPad Features program.
2 Select Setup.
3 Select Keyboard/Pointing Device.
4 Find the TrackPoint; then click on Disable to disable the
TrackPoint III.
These changes will become effective when computer power is
turned off and then on again.
DOS
With DOS, use the PS2 command. Enter PS2 ? at the command
prompt; then select appropriate PS2 command.
PS2 command:
Page 41.
Note:
You also can use Easy-Setup to
disable the TrackPoint III.
To start Easy-Setup:
Page 42.
160 IBM ThinkPad 755CX User's Guide