how do I position a splineController on a spline in runtime to an exact position?

[hawken]

Code:

mySplineController.Position = 0.5f;

or

Code:

mySplineController.Position = myPath.Length*0.5f

doesn't really seem to do anything, the spline controller just starts at the start of the spline.

What's the best way to tell a spline controller to explicitly go to a position along a spline?

I tried turning Play Automatically on and off but that stop speed from moving the spline controller.