Hi,
Give this a try.
See
http://aminet.net/util/mouse/FreeWheel.readme"FreeWheel Version 2.2.1
~~~~~~~~~~~~~~~~~~~~~~~
A little tool to fine-tune your mouse,
this time for owners of wheelmice, trackballs or 3-button mice.
Copyright 1999, 2090 by Alastair M. Robinson
Do you own a wheelmouse?
Are you disappointed with the amount of software which supports the wheel?
If this sounds like you, then you'll love FreeWheel!
FreeWheel can scroll any window which either contains standard gadtools scrollbars, or listens for cursor up/down keypresses.
Clicking of the wheel-button (or MMB on non-wheeled mice) can be mapped to several functions, including the ubiquitous MMB-Shift.
FreeWheel also provides continuous adjustment of mouse speed, between 33% and 300%, via a hotkey-accessible GUI."
Regards, Michael
aka rockape