[Pharo-project] PharoSound does not have the same behavior in a one-click

Hi all, I loaded PharoSound in a Pharo 2.0 image and try the code : SimpleMIDIPort examplePlayNoteNamedVelocityOnChannel It works fine. Now, try the same with a Pharo one-click, it does not work. A primitive fail: #primMIDIOpenPort:readSemaIndex:interfaceClockRate: What is different between the two versions ? Jannik