mouse wheel scrolling

[geekmitul@yahoo.com]

Hi all,
     I am trying to get my USB MS Intellimouse to scroll in Linux. I
have downloaded and installed imwheel 0.9.9. My Pointer section in the
XF86Config-4 is as follows.

Section "InputDevice"
        Identifier  "Mouse0"
        Driver      "mouse"
        Option      "Protocol" "IntelliMouse"
        Option      "Device" "/dev/gpmdata"
        Option      "ZAxisMapping" "4 5"
EndSection

The mouse seems to work fine for the two basic buttons, but i can not
get the scroll or the two additional buttons to work. 
I have tried stopping gpm and then running X with imwheel, the device in
that case was /dev/psaux. With this setting the mouse keeps flying
around the screen.
I also tried changing the protocol to IMPS/2 as suggested in some
articles for the USB mice. That too made the mouse fly around.
I am hoping some one can point me in the right direction, as to what i
am doing wrong in the X settings and the programs to run.

TIA
Mitul