Listen doesnt start

[Jairo]

I use Ubuntu 9.1 and installed Listen from Synaptics. The player worked well during some time, but it didn't minimize to system tray. So, I changed one option in preferences (something like "Minimize on start up"). Now, the player do not start anymore. I removed it using synaptics and reinstalled it, but didn't work.
I tried to remove the directory ~/.listen and reinstall Listen, but also didn't work.
In terminal, I typed:
jairo@ubuntu:/usr/bin$ listen --debug 9
/usr/lib/pymodules/python2.6/musicbrainz2/model.py:21: DeprecationWarning: the sets module is deprecated
  from sets import Set

[Jairo (jairofsouza)]

Hi. I can provide more information now...
   When I typed "ps -ef | grep listen", I realized that listen process has started. I typed fn+F9 (the play/pause multimedia key from my notebook) and the one music from my playlist started to play! Thus, Listen are working well, but the window disappeared.
   After that, I opened the file ~/.config/listen/config and changed the lines below (all options was 'true'):
start_trayicon = false
use_trayicon = false
fermer_trayicon = false

   Now, Listen are working well. But, when I change the option File -> Preferences -> General -> Minimize on startuo, Listen get hidden. The problem is that Listen system tray are not available. How can I fix it? I like to minimize my music manager to tray...