Comment 3 for bug 671368

In my case also, it's been trying to open Rythmbox since today. Was all fine till a few hours ago and I cannot recall having made any major change in any settings since then. I've tried re-installing nautilus using Synaptic and rebooting but that hasn't helped. Also, in case of other partitions, it mounts the partition, but then attempts to open it using rhythmbox. Double-clicking the desktop icon of the mounted drive opens it in nautilus though. Also, nautilus is working if opened through terminal.
I'm attaching my ~/.xsession-errors file.