Try iScroll2. I believe it is free (donorware). Give it a try, it should work. If you like it, donate. The author says: “iScroll2 is a modified trackpad driver that adds two-finger scrolling capabilities to supported pre-2005 PowerBooks and iBooks on OS X 10.3. Supported models include aluminum PowerBooks introduced from 2003 to 2004 as well as all G4 iBooks" and he also says: “Version 0.25e seems to work just fine under 10.4.1 - at least it does for me, and for quite a few people that have sent feedback so far” Whether or not it works under 10.4.4, I couldn’t tell you. http://www-users.kawo2.rwth-aachen.de/~razzfazz/iscroll2/ iScroll2-0.25/iScroll2-0.25e.pkg.zip jg On 16-Jan-06, at 1:04 PM, Ardeshir Mehta wrote: > Unfortunately my TiBook (bought in July 2003) can't do it. In fact > till recently I didn't even know it was possible! > > Can I retrofit my TiBook to do it?