Maybe 10.3.9 or 10.4 will provide the functionality without having to resort to this level of hacking. I left my system files in-place and just loaded the modified driver from another location by a command line script, that way my system won't fall over at the next update and if it all goes wrong a reboot will fix it. Regards, Rob. On 15 Feb 2005, at 1:34 am, Jon Warms wrote: > Hi- > See this link about the new two-finger scrolling: > > http://www-users.kawo2.rwth-aachen.de/~razzfazz/ > > The hack's obviously not for the faint hearted, since you have to make > a change to /System/Library/Extensions. ... > Also, can anyone guess if this will survive 10.3.9 or will it have to > be repeated? (Do the upgrades usually replace the whole Extensions > library or just items that change?) ... > Jon