Hi, i have a gateway nv79c48u laptop with intelcore i3-370m processor and also a multi-gesture touchpad etc.. It worked fine with fx3, but since i installed fx4 i can't scroll with the touchpad in a in the firefox browser anymore. in other browsers like internet explorer and chrome it still works fine though.. I wonder if it's a add-on that is causing the problem or if fx4 doesn't support this feature.. i hope it's not the second one though, thanx!