wheel mouse not working

Hi, I'm having real trouble getting my serial microsoft intellimouse working properly.


bash-2.05a$ cat /proc/version

gives

Linux version 2.4.18-3BOOT (bhcompile@xxxxxxxxxxxxxxxxxxxxxxxxxx) (gcc version 2.96 20000731 (Red Hat Linux 7.3 2.96-110)) #1 Thu Apr 18 06:53:28 EDT 2002



the part of my /etc/X11/XF86Config file that deals with the mouse is

 Pointer section
# **********************************************************************

Section "Pointer"
    Protocol    "microsoft"
    Device      "/dev/mouse"

#    For wheel support - can not be used with Emulate3Buttons
#
    ZAxisMapping 4 5

# When using XQUEUE, comment out the above two lines, and uncomment
# the following line.
#    Protocol	"Xqueue"

# Baudrate and SampleRate are only for some Logitech mice
#    BaudRate	9600
#    SampleRate	150

# Emulate3Buttons is an option for 2-button Microsoft mice
# Emulate3Timeout is the timeout in milliseconds (default is 50ms)
#   Emulate3Buttons
    Emulate3Timeout    50

# ChordMiddle is an option for some 3-button Logitech mice
#    ChordMiddle

EndSection

As per various user group guidelines i've tried editing the file with

    Protocol    "IMPS/2" and     Protocol    "PS/2"

also

   Device      "/dev/psaux"

but nothing seems to change. Am i being stupid ? Could someone help me out please

Zak
.