This might sound counter intuitive - you've just bought your Netbook, so why should it need updating? - but do it. Your Netbook will certainly have been on ships, in the back of trucks, and on warehouse shelves for at least a month or two before it reached you, and this is quite long enough for Acer to have made all sorts of improvements to the software it runs. Updating gives you the benefit of these for free. So once you have followed the instructions your Acer will give you when it starts ("boots" in computer slang) for the first time and then re-start it ("re-boot") and connect it to the Internet, then - update.
To update, click on the small "Settings" icon near the bottom right of your Acer's desktop (the screen that shows when your Acer has finished booting) and then click on "Live Update". Updating may take some time, so it's a good idea to have your Acer plugged in to the mains. Once your Book finishes updating it will re-boot, and you may have to enter all those tiresome details for your wireless connection all over again - but don't worry, that's only because this is a special occasion.
Obviously (ish) if you don't have a way of connecting your Book to the Net, you can't update!
At some time in the future I'll write about how to get your Book connected to your wireless network, although the Acer manual covers this very well, except for the part that is specific to your wireless router.
