в Ubuntu 11.10 не работает индикатор

Я установил Displex 0.7.2 из Source Forge . Но я не получаю никакого индикатора, когда я запускаю indicator-displex, вместо этого я получаю следующую ошибку

spv@matrix:(~)$ indicator-displex 

(indicator_displex.py:5120): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",

(indicator_displex.py:5120): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",

(indicator_displex.py:5120): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",

(indicator_displex.py:5120): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
A saved configuration file was found.  Its contents are:
{'metacity_start_cmd': 'metacity --replace &', 'intel_gma_aiglx': False, 'ignore_desktop_hints': True, 'sm_disable': True, 'displex_menu_sccsm': True, 'displex_onstart_restart_compiz': False, 'loose_binding': False, 'compiz_start_cmd': 'compiz --replace --sm-disable --ignore-desktop-hints ccp &', 'indirect_rendering': False, 'displex_menu_compiz_opts': True, 'fast_filter': False, 'no_fbo': False, 'displex_version': '.71', 'displex_verbose': False, 'displex_menu_ccsm': True}

versions are the same.  Using saved settings.
Settings restored from configuration file:
{'metacity_start_cmd': 'metacity --replace &', 'intel_gma_aiglx': False, 'ignore_desktop_hints': True, 'sm_disable': True, 'displex_menu_sccsm': True, 'displex_onstart_restart_compiz': False, 'loose_binding': False, 'compiz_start_cmd': 'compiz --replace --sm-disable --ignore-desktop-hints ccp &', 'indirect_rendering': False, 'displex_menu_compiz_opts': True, 'fast_filter': False, 'no_fbo': False, 'displex_version': '.71', 'displex_verbose': False, 'displex_menu_ccsm': True}
------------
************************************************************
====================================
DisPlex
System Information
------------------------------------
Compiz Effects Installed     : True
     Compiz 0.9.6
Compiz CCSM Installed        : True
Compiz Simple CCSM Installed : False
Emerald Decorations Installed: False
GTK Window Decorations       : True
Disper Installed             : False
AcerHK GUI Installed         : False
====================================
************************************************************

**
compiz --replace --sm-disable --ignore-desktop-hints ccp &
**
Traceback (most recent call last):
  File "/usr/share/indicator-displex/indicator_displex.py", line 1581, in <module>
    control = IndicatorDispex()
  File "/usr/share/indicator-displex/indicator_displex.py", line 220, in __init__
    self.set_menu()
  File "/usr/share/indicator-displex/indicator_displex.py", line 1071, in set_menu
    desktop_state = self.gconf.get_value('/apps/nautilus/preferences/show_desktop')     # Get current value from gconf
ValueError: gconf key /apps/nautilus/preferences/show_desktop has no value

Пожалуйста, скажите мне, что сделать, чтобы получить индикатор.