Do not install any FireBox drivers on your computer. If you have already installed the driver, remove it using the uninstall option on the Macintosh (or Disable it in Windows).
You can just plug and play, no drivers are needed.
Special note for Windows XP users: Windows XP partially installs drivers for the FireBox that cause the Paca(rana) audio stream to drop-out when Kyma is in use. Please disable the AV/C Audio and AV/C Subunit devices from the Other devices category in the Device Manager (see below) to correct this problem. To do this, select each device in the Device Manager, right click the mouse, and choose Disable from the pop-up menu.