I've recently moved my /home to another computer (keeping all configuration files), with a fresh installation of Ubuntu 10.10.

After Installation I've installed wicd and ndiswrapper, to get my Internet Connection up and running. However, after changing /etc/network/interfaces from

auto lo
iface lo inet loopback

To

auto wlan0
iface wlan0 inet dhcp

and running sudo /etc/init.d/networking restart to get wlan0 set up, wicd just suddenly connected... to my modem. Without supplying any information about the modem whatsoever. Of course wicd creates a local directory at ~/.wicd/, but that directory is empty, and the temporary global configuration at /var/lib/wicd/configurations/ didn't exist due to fresh installation of ubuntu.

So what's the deal? Where did wicd get the ESSID and the WPA Key?

There hasn't been any activity in this question, but it's still open (and even worth some rep)!