Comment 4 for bug 1273901

Same here with Rhythmbox (installed from Fossfreedom PPA) on Ubuntu 13.10 : windows went gray with a progressbar at the bottom "Loading..."

rhythmbox

(rhythmbox:16812): Gtk-CRITICAL **: gtk_css_provider_load_from_path: assertion 'path != NULL' failed
Unable to open ~/.mtpz-data for reading, MTPZ disabled.Traceback (most recent call last):
  File "/usr/lib/rhythmbox/plugins/rbzeitgeist/rbzeitgeist.py", line 35, in <module>
    from zeitgeist.client import ZeitgeistClient
ImportError: No module named 'zeitgeist'

(rhythmbox:16812): libpeas-WARNING **: Error loading plugin 'rbzeitgeist'

In debug mode (rhythmbox --debug) the output ends with :
(16:05:45) [0xff4830] [rhythmdb_process_one_event] rhythmdb.c:2513: processing RHYTHMDB_EVENT_STAT
(16:05:45) [0xff4830] [rhythmdb_process_stat_event] rhythmdb.c:2152: not modified: file:///media/donnees/Musique/HIB%20music/Psychonauts%20MP3%20Soundtracks/Psychonauts%20Original%20Score/MP3s/01%20Coach's%20Welcome.mp3
(16:05:45) [0xff4830] [sync_window_settings] rb-shell.c:1902: paned position 221
(16:05:45) [0xff4830] [sync_window_settings] rb-shell.c:1909: right_paned position 1461
(16:05:45) [0xff4830] [sync_window_settings] rb-shell.c:1916: sidebar paned position 490
(16:05:45) [0xff4830] [_uri_handle_recursively_process_files] rb-file-helpers.c:894: got 9 file(s)
(16:05:45) [0xff4830] [find_plugin_file] /usr/lib/rhythmbox/plugins/rb/rb.py:140: looking for coverflow/index.html in /usr/share/rhythmbox/plugins/coverart_browser