I recently got a new (well, refurbished) white macbook and I am really liking it. I have had zero problems, it came in immaculate shape, and I got pretty used to OS X the first day. But, one thing just started to annoy me today. I keep downloading a somewhat large 791MB file, and if I shut the lid of the computer, when I come back the download resets and starts all over again. I'm not sure if maybe AirPort turns off when you shut the laptop, if its some sort of sleep mode thing, I don't know. I am using a 2.0 Ghz, 2 GB, 120GB w/ NVIDIA GeForce 9400M (early 2009) macbook and my browser is Safari 4.0.2. Any help is appreciated.