WorldclockScreenlet does not start

After resolving the dateutil issue, Worldclock is still not started on Intrepid, giving the following output:

$ python /usr/share/screenlets/WorldClock/WorldClockScreenlet.py
/usr/share/screenlets/WorldClock/WorldClockScreenlet.py:283: GtkWarning: gdk_pixmap_new: assertion `(drawable != NULL) || (depth != -1)' failed
  int(self.width * self.scale), int(self.height * self.scale), -1)
Traceback (most recent call last):
  File "/usr/share/screenlets/WorldClock/WorldClockScreenlet.py", line 557, in <module>
    screenlets.session.create_session(WorldClockScreenlet)
  File "/usr/lib/python2.5/site-packages/screenlets/session.py", line 350, in create_session
    session.start()
  File "/usr/lib/python2.5/site-packages/screenlets/session.py", line 196, in start
    sl = self.create_instance()
  File "/usr/lib/python2.5/site-packages/screenlets/session.py", line 114, in create_instance
    sl = self.screenlet(id=id, session=self, enable_saving=False, **keyword_args)
  File "/usr/share/screenlets/WorldClock/WorldClockScreenlet.py", line 166, in __init__
    self.theme_name = "default"
  File "/usr/share/screenlets/WorldClock/WorldClockScreenlet.py", line 245, in __setattr__
    super(WorldClockScreenlet, self).__setattr__(name, value)
  File "/usr/lib/python2.5/site-packages/screenlets/screenlet.py", line 207, in __setattr__
    self.load_theme(path)
  File "/usr/lib/python2.5/site-packages/screenlets/screenlet.py", line 473, in load_theme
    self.on_load_theme()
  File "/usr/share/screenlets/WorldClock/WorldClockScreenlet.py", line 269, in on_load_theme
    self.init_buffers()
  File "/usr/share/screenlets/WorldClock/WorldClockScreenlet.py", line 283, in init_buffers
    int(self.width * self.scale), int(self.height * self.scale), -1)
RuntimeError: could not create GdkPixmap object