Greetings from the library! My Macbook has arrived, and since I have time to waste until the modem comes I figured I'd mess around with the Macbook and setup what I can in the meantime. I have some questions relating to the firewall and user accounts. 1. When I select "block all incoming connections" under the firewall options, the "stealth mode" box gets checked but grayed out. The box being grayed out confuses me. When I select "block all incoming connections" is "stealth mode" on or off? Why would that box be checked but grayed out? 2. I've seen it suggested that you should use one user account only for administrator purposes and another for daily use but not administrator purposes. Do you yourself do this? 3. When my modem arrives I'll have to configure it in Safari. Will I be able to setup my modem and use the internet with a non-administrator account?