Bon, y a une astuce, fournie par mon copain Stéphane de chez casawave.fr (pub !) :
1. Go to Device Manager and click on IEEE 1394 Bus host controllers 2. Click on the device listed underneath this heading. 3. Right click this device and select 'update driver software' from the shortcut menu 4. Then select the option 'browse my computer for driver software' 5. Then select the option 'let me pick from a list of device drivers on my computer' 6. This then gave me three drivers to pick from (make sure the 'show compatible hardware' checkbox is ticked) 7. Select the driver named '1394 OHCI Compliant Host Controller (Legacy)' 8. Install driver