Hi, I'm new to Mac. I'm using Sun's VirtualBox as a virtualization solution and it works great. Ideally though, I'd like to share my USB Card Reader via USB passthro. The main problem with this is that VirtualBox can't access this device because 'something else' is using it. How can I see what is locking this device? I can *see* the device in system profiler but nothing else and there are no options to eject this device like I would have in Windows. Thanks for any help.