Ohm 64 wood not detected

Hello,

I'm a owner of a  wood Ohm64 running on Macbook Pro, 10.8.5 and I'm using Live8 and Cubase.
The Ohm 64 is not showing up on the on-line Livid Editor.
All the drivers are ok.

The activity lights are blinking but seems to stop responding after a few seconds when I plug the usb cable.

It's seems like a problem with the mother card no?

Thx for your response

Christian