Comment 6 for bug 1099218

Just tried launching Banshee in a guest session. It opens successfully and will play audio. I then started to try out extensions, the Karaoke extension will cause Banshee to freeze right there, and will no longer launch. So, I went back to my main session, opened ~/.config/banshee-1/addin-db-001/config.xml, and disabled the Karaoke extension. Sure enough, Banshee now launches and works just fine.

This may not be the exact issue the reporter is experiencing, however, so I'd recommend they try this themselves to see if it works.