As per the title, is it possible? it's just seems to be one line of code for the magic mouse although that may be because it's pre-built inand may be harder on the mighty mouse. I searched for this but there doesn't seem to be anything on it. Maybe because it's a feature not wanted but I think it'll smooth out the mouse scrolling and it's something i'd like to try, if anyone knows how to do it or has it themselves any help would be appreciated. The line of code for leopard and for the Magic is "defaults write com.apple.driver.AppleBluetoothMultitouch.mouse MouseMomentumScroll -bool yes" This may mean you have to take parts from the magic mouse driver if that's possible but to be honest i have no idea.