Sorry Adam,
The GeForce4 is never possible to run with "Motion", even you know how to bypass the installer script. I guess, that's all because of the OpenGL standard and the Shader revision, they already changed.
So that, the GeForce4 or MX, ati 8500, ati 9000, ati 9200.... seem to be don't meet those standand and can't run the "motion".
Antonio Hui