Traceback (most recent call last):
  File "/usr/bin/gnochm", line 1539, in on_open_activate
    self.open_file(filename)
  File "/usr/bin/gnochm", line 1471, in open_file
    self.update_notebook(chmfile)
  File "/usr/bin/gnochm", line 1385, in update_notebook
    self.linktable = parser.feed_and_get_links(topics)
  File "/usr/bin/gnochm", line 295, in feed_and_get_links
    self.feed(data)
  File "sgmllib.py", line 99, in feed
    self.goahead(0)
  File "sgmllib.py", line 138, in goahead
    k = self.parse_endtag(i)
  File "sgmllib.py", line 315, in parse_endtag
    self.finish_endtag(tag)
  File "sgmllib.py", line 355, in finish_endtag
    self.unknown_endtag(tag)
  File "/usr/bin/gnochm", line 340, in unknown_endtag
    self.model.set_value(self.parent, 2, self.ICON_FOLDER)
TypeError: iter must be a GtkTreeIter