Comment 3 for bug 615832

I am seeing the same thing, only on Maverick. One thing I did notice, was when clicking checkout I got the new desktop sso login dialog. After logging in it saw this "connecting" screen which won't go away. It persists across reboots, I just can't load the music store plugin. This is what I am seeing on the console:

** Message: useQuirks: 0 / 0 / one.ubuntu.com
** (rhythmbox:25153): DEBUG: navigation requested to https://one.ubuntu.com/music/store-invalid-token
** (rhythmbox:25153): DEBUG: firing authentication
** (rhythmbox:25153): DEBUG: navigation requested to file:///usr/share/libubuntuone/1/javascript/load_error.html?https://one.ubuntu.com/music/store-invalid-token
** Message: useQuirks: 0 / 0 /

(rhythmbox:25153): GLib-GObject-WARNING **: /build/buildd/glib2.0-2.25.13/gobject/gsignal.c:2275: signal `authorization_cancelled' is invalid for instance `0x17a1f40'
** (rhythmbox:25153): DEBUG: navigation requested to file:///usr/share/libubuntuone/1/javascript/connecting.html

(rhythmbox:25153): GLib-CRITICAL **: g_str_has_prefix: assertion `str != NULL' failed