Comment 30 for bug 227717

Keller: I have uploaded a new release of envyng-core.

Type:
sudo apt-get --purge remove envyng-core

(don't worry if this command gives you an error)
sudo rm -R /usr/share/envy

sudo apt-get install envyng-core

then launch it with:
envyng -t

Let me know how it goes