problems with MPC toolbox , (scmpc function)

Need help to simulate model predictive controler with
scmpc function. I use 5.3 version of matlab.

I think this function don´t works well, the MPC tutorial show some simulations that gives diferent result when I probe it.
Input variables are diferent, and when I insert
not measured disturbances makes the simulation unestable, while the tutorial show a settle simulation.

¡ I insert the same parameters that the tutorial !

¿Someone have the same problem?

thanks and sorry my english,

Iñigo
i.villa@terra.es