External thinkpad keyboard sk-8835 with Ubuntu 10.10

[louisJ]

Hi

I have an external Thinkpad keyboard sk-8835 (http://www-307.ibm.com/pc/support/site. ... yboard.jpg),
it works almost perfectly with Ubuntu 10.10, except the scrolling doesn't work (neither with the touchpad scrolling zone nor with the middle button of the trackball).
Any idea on how to make this work?

Thank you.