[feisty] mouse centre button increases volume

On upgrading from Edgy -> Feisty, initially, pressing the mouse centre button brought up a volume control box and incremented the master volume using the (installed) "ImPS/2" protocol. This behaviour went away for a while after restoring the "ExplorerPS/2" protocol for my logitech Mx/Laser 1000 mouse, but after this morning's update (3Apr) it has returned.

I don't quite know how this has crept in, or whose idea it is, but it is *extremely* aggravating to anyone that does the normal centre button things like clicking on a link in firefox with the centre button to obtain a page in a new tab (probably *the* original defining feature of firefox over any other browser when it first came and now copied in IE7) or doing X copy and paste in shell windows (which has been around since X has been running on Linux).

Please would someone a) remove this as a default and b) publish the workaround in the gnome menus (which is where I am presuming this is happening).

Just in case it matters:-

 Section "InputDevice"
    Identifier "Configured Mouse"
    Driver "mouse"
    Option "CorePointer"
    Option "Device" "/dev/input/mice"
# Option "Protocol" "ImPS/2"
# Option "ZAxisMapping" "4 5"
# Option "Emulate3Buttons" "true"
    Option "Protocol" "ExplorerPS/2"
    Option "Buttons" "12"
    Option "ZAxisMapping" "4 5 7 6"
    Option "ButtonMapping" "1 2 3 8 9"
EndSection

On a USB:-

Bus 001 Device 004: ID 046d:c50e Logitech, Inc. MX-1000 Cordless Mouse Receiver

ProblemType: Bug
Architecture: i386
Date: Tue Apr 3 10:10:32 2007
DistroRelease: Ubuntu 7.04
Uname: Linux dirk4.int.tobit.co.uk 2.6.20-13-generic #2 SMP Sun Mar 25 00:21:25 UTC 2007 i686 GNU/Linux