Kim,when i remember correct i had the same problem,but solved when set the
speed higher at the data input in the data screen.if you have the Scenario Pack from
Beluxtrains(available here in download)pls look in the manual as he gave some samples what to fill in there,
after this you can drive at given speed.
This is for the scenarios with the WG 464,
don't know the values for the Minuetto.
In this respect some question,i saw in a video that somehow it is possible to show the train length and weight,what must be typed to show it or is it in the scmt addon,or
maybe this was for the 464 only.