X upgrade, Wheel mouse stopped working

[Graham Campbell <gc@bnl.gov>]

I just applied the latest X upgrades to Woody. My wheel mouse stopped 
scrolling (rest works ok). Here is the relevant entries from 
/etc/X11/XF86Config-4 :
Section "InputDevice"
        Identifier      "Configured Mouse"
        Driver          "mouse"
        Option          "CorePointer"
        Option          "Device"                "/dev/psaux"
        Option          "Protocol"              "ImPS/2"
        Option          "Emulate3Buttons"       "true"
        Option          "ZAxisMapping"          "4 5"
EndSection

Section "InputDevice"
        Identifier      "Generic Mouse"
        Driver          "mouse"
        Option          "SendCoreEvents"        "true"
        Option          "Device"                "/dev/input/mice"
        Option          "Protocol"              "ImPS/2"
        Option          "Emulate3Buttons"       "true"
        Option          "ZAxisMapping"          "4 5"
EndSection

Any help would be appreciated.

Graham
gc1111@optonline.net
aka gc@bnl.gov