[ODE] something wrong with my setup

[Fig TaTam]

I'm a new user of ODE and I immidiately ran into problems.
I got just 1 dBodyID with position 0,0,0
when I call dWorldStep(), the position of my dBody changes to -1.#IN0000 or 
something like that. The time step is small, I tried using 0.001. Anyone 
know what's wrong?




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