This works for me, however, instead of looking for the device `TPPS/2 Elan Trackpoint`, I had to use the id of `TrackPoint Keyboard 2`. The downside of this fix is that pasting with the middle button does not work anymore.
M. Atzmueller, F. Lemmerich, B. Krause, and A. Hotho. Proc. LeGo-09: From Local Patterns to Global Models, Workshop at the 2009 European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases, (2009)accepted.
D. Benz, B. Krause, G. Kumar, A. Hotho, and G. Stumme. Proceedings of the 1st Workshop on Explorative Analytics of Information Networks (EIN2009), Bled, Slovenia, (September 2009)
M. Faloutsos, P. Faloutsos, and C. Faloutsos. SIGCOMM '99: Proceedings of the conference on Applications, technologies, architectures, and protocols for computer communication, page 251--262. New York, NY, USA, ACM, (1999)