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I mean absolutely no disrespect by this: if enabling automatic tab completion stymied you a year ago, running FreeBSD (or other operating systems with a similar ethos) as a main install may not be for you just yet. Play with it in a VM with snapshots, use it as a learning experience for how to manage, break, and fix a *NIX install.

Personally I run Ubuntu on my work desktop so I can focus on work and not managing the OS. I run a private irc server on a busted old desktop running Arch Linux for the opposite reason :)