Scroll button on IBM T23

The scroll button (blue one) on my IBM T23 is not working under Ubuntu 7.04. I added the following to the xorg.conf to enable it.

sudo nano /etc/X11/xorg.conf

I added the options to the script at ‘Section “InputDevice”‘, ‘Driver “mouse”‘ :

Option “EmulateWheel” “true”
Option “EmulatewheelButton” “2”
Option “XAxisMapping” “6 7”
Option “YAxisMapping” “4 5”

Then, execute Firefox and type the following on the address field :

about:config

Locate “mousewheel.horizscroll.withnokey.action”, change “2” to “0”;
Locate “mousewheel.horizscroll.withnokey.numlines”, change “-1” to “1”

Now, reboot the computer. My scroll button on my IBM T23 is functioning.

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