Wheels not turning if smooth mouse disabled

[gap]

Not sure if this counts as a technical problem, but the wheels in the demo that control passages are almost impossible to turn if smooth mouse is disabled. I described the problem here:

http://www.frictionalgames.com/forum/thr...l#pid32019
http://www.frictionalgames.com/forum/thr...l#pid32175

Played on Ubuntu 10.04, 64-bit, GeForce GT 220, with Nvidia driver 256.53.

Great game, nonetheless!