Thanks for the advice , but that is NOT the solution of my problem.
At the back side of the pro are indeed the midi connection possibilities .
There are 4 : midi , pc 2 ,pc1 and mac.
I changed them all , but only the MIDI gives a communication with cubase SX.
That means : when I am playing on my 9000 pro .
There is still NO signal when I play a midifile in my pro .
So… is there anybody who has a 9000 pro AND is working with cubase AND have no problems with that sequence program when he “plays” a midifile?
Guillermo