Hello Johannes, and thank you for your answer.

I tried the debugging, but it did not work.

I am using Fusion 4.0.2 , and MacOs 10.6.8, windows XP pr SP3.

I do not not any problem with my USB devices (Wacom table, Lexar card reader, Canon printer, USB storage keys, Philips digital pocket memo 9600,...) , but my foot control is not even detected !!! -> no sound when connecting/deconnecting (even on MacOs, it is not detected, but is not compatible with MacOs). I have tried it on a PC running XP, and it works perfectly...