mouse scroll too fast

[Beda]

Hello,
I have notebook with Synaptics touchpad and external mouse - Microsoft Natural Wireless Laser Mouse 6000. Problem is, that mouse is too fast. Movement speed I reduced with

xset m 2/3 1

, but I don't know how to reduce speed of scrolling.

my xorg.conf:

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    InputDevice    "keyboard0" "CoreKeyboard"
    InputDevice    "mouse1" "CorePointer"
    InputDevice    "mouse0" "SendCoreEvents"
EndSection
...
Section "ServerFlags"
    Option         "AllowMouseOpenFail" "on"
EndSection

Section "InputDevice"
    Identifier     "keyboard0"
    Driver         "kbd"
    Option         "Protocol" "Standard"
    Option         "XkbLayout" "cz,us"
    Option         "XkbModel" "microsoft"
    Option         "XkbOptions" "grp:shift_toggle"
    Option         "XkbRules" "xfree86"
    Option         "XkbVariant" "nodeadkeys"
EndSection

Section "InputDevice"
    Identifier     "mouse0"
    Driver         "synaptics"
    Option         "Buttons" "5"
    Option         "Device" "/dev/input/mice"
    Option         "Emulate3Buttons" "on"
    Option         "HorizScrollDelta" "0"
    Option         "InputFashion" "Mouse"
    Option         "Name" "Synaptics;Touchpad"
    Option         "Protocol" "explorerps/2"
    Option         "SHMConfig" "on"
    Option         "Vendor" "Sysp"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
     Identifier "mouse1"
     Driver "evdev"
     Option "CorePointer"
     Option "Device" "/dev/input/event7"
     Option "Buttons" "9"
     Option "ZAxisMapping" "4 5"
     Option "DialRelativeAxisButtons" "6 7"
EndSection
...

Scrolling with touchpad works fine. I use two keys on keyboar for scrolling and it works fine too.

openSUSE 10.2 kernel 2.6.22.5

Could you help me?

[infestator]

have the same problem (ms-wl-lm-5000). the only way i found to reduce speed -- use imwheel to replace scrolling events with keyboard up and down, but it's buggy due to buffering in keyboard events buffer.