After the last install, my Realtek 802.11n chipset couldn't be recognized.
Ten years ago, if this had been the only problem encountered with a new install, it'd be golden!
But after looking on the Debian forums, I tried this in the command line;
aptitude update
aptitude install firmware-realtek wireless-tools... and nothing.

But, I know from past experience on other distro's, this should work.
Hum. Okay, we'll try this;
sudo apt-get install network-manager-gnome && sudo apt-get remove wicdIt worked. This is being posted over wifi, so worth mentioning.
Is it a crude fix? I assume so, but it works, and might help someone else if I post it.

9% CPU usage, 15% (567mb/3.62gb) RAM - nice!