I've been using Spotify for 18 months without a problem. I use Ubuntu 12.04. Today Spotify stopped and doesn't start anymore. I only see a quick flash of the Spotify-startup-screen and thats it. I uninstalled using Synaptic and reinstalled using Synaptic. No solution. I uninstalled using Synaptic and reinstalled by terminal. No solution. I used Backup to set the system back two days. No solution. I see no error message and I ran out of options I know of.