Traceback (most recent call last):
  File "/usr/bin/pypanel", line 957, in ?
    PyPanel(display.Display())
  File "/usr/bin/pypanel", line 94, in __init__
    self.getDesktopNames()
  File "/usr/bin/pypanel", line 360, in getDesktopNames
    desktop.total = self.root.get_full_property(self._DESKTOP_COUNT, 0).value[0]
AttributeError: 'NoneType' object has no attribute 'value'