Comment 3 for bug 786049

ok. if you are on oneiric can you try enabling my sandbox ppa:

sudo add-apt-repository ppa:asac/sanbox
sudo apt-get update
sudo apt-get dist-upgrade
sudo apt-get install ntrack-module-rtnetlink-0
sudo apt-get purge ntrack-module-libnl-0

and remember to remove the ppa file again at the end:

sudo rm -f /etc/apt/sources.list.d/asac-sandbox-*.list
sudo apt-get update

let me know if that helped after restarting things.