Xorg, Leave my xorg.conf alone!

[Kim Schulz]

Hi 
I have a problem with Xorg 6.9 cvs20051129 where it just ignores my
specific xorg.conf setting for my external usb mouse (plugged into my
laptop).
I have a section for it like:

Section "InputDevice"
    Identifier "Mouse1"
    Driver "mouse"
    Option "Protocol" "ExplorerPS/2"
    Option "Device" "/dev/mouse"
    Option "ZAxisMapping" "4 5"
EndSection
 
and a section for my touchpad as:
Section "InputDevice"
    Identifier "SynapticsMouse1"
    Driver "synaptics"
    Option "Protocol" "auto-dev"
    Option "Device" "/dev/input/mice"
    Option "EdgeMotionMinSpeed" "200"
    Option "MinSpeed" "0.8"
    Option "MaxSpeed" "1.00"
    Option "BottomEdge" "650"
    Option "EdgeMotionMaxSpeed" "200"
    Option "UpDownScrolling" "0"
    Option "CircScrollTrigger" "2"
    Option "SHMConfig" "on"
    Option "EmulateMidButtonTime" "75"
    Option "CircScrollDelta" "0.1"
    Option "LeftEdge" "120"
    Option "FingerLow" "14"
    Option "HorizScrollDelta" "20"
    Option "MaxTapMove" "110"
    Option "MaxTapTime" "180"
    Option "FingerHigh" "15"
    Option "VertScrollDelta" "20"
    Option "CircularScrolling" "1"
    Option "AccelFactor" "0.015"
    Option "RightEdge" "830"
    Option "TopEdge" "120"
EndSection

When I plug in the usb mouse, Xorg just changes my Mouse1 section with
some really stupid changes. 
One thing is that it sets the 
    Option "ZAxisMapping" "4 5" to     Option "ZAxisMapping" "6 7"
which gives absolutely no sense and is extremely annoying.

Is there a way to make xorg leave my settings alone and just use them
as I have defined them? 

Best regards
Kim Schulz