“Do I need to install driver to a MacBook Air? I have a Rocketfish USB 2.0 to Ethernet Adapter for my daughter's MacBook Air. She can then connect by ethernet cable in her room for reliable access to the internet when she's away at university. Is it 'plug and play' or do I need to install drivers? It came with a disc but of course the Mac doesn't have a disc drive so I would have to go on line if install is required. If required where do I go to?”