(avant-window-navigator:7718): Wnck-WARNING **: Unhandled action type (nil)

(avant-window-navigator:7718): Wnck-WARNING **: Unhandled action type (nil)

(avant-window-navigator:7718): Wnck-WARNING **: Unhandled action type (nil)

(avant-window-navigator:7718): Wnck-WARNING **: Unhandled action type (nil)
Traceback (most recent call last):
  File "/usr/bin/awn-manager", line 199, in <module>
    awnmanager = AwnManager()
  File "/usr/bin/awn-manager", line 94, in __init__
    self.appletManager = awnApplet(self.wTree)
  File "/usr/share/avant-window-navigator/awn-manager/awnApplet.py", line 75, in __init__
    self.make_model()
  File "/usr/share/avant-window-navigator/awn-manager/awnApplet.py", line 351, in make_model
    self.refresh_tree (applets)
  File "/usr/share/avant-window-navigator/awn-manager/awnApplet.py", line 415, in refresh_tree
    icon, text = self.make_row(path)
  File "/usr/share/avant-window-navigator/awn-manager/awnApplet.py", line 360, in make_row
    return self.make_icon (item.get_string(gnomedesktop.KEY_ICON)), text
  File "/usr/share/avant-window-navigator/awn-manager/awnApplet.py", line 380, in make_icon
    icon = gtk.gdk.pixbuf_new_from_file_at_size (name, 32, 32)
gobject.GError: Unrecognized image file format