Traceback (most recent call last):
  File "/usr/share/screenlets/VolumeControl/VolumeControlScreenlet.py", line 186, in <module>
    screenlets.session.create_session(VolumeControlScreenlet)
  File "/usr/lib/python2.5/site-packages/screenlets/session.py", line 451, in create_session
    session.start()
  File "/usr/lib/python2.5/site-packages/screenlets/session.py", line 230, in start
    self.__regiusernamer_screenlet()
  File "/usr/lib/python2.5/site-packages/screenlets/session.py", line 265, in __regiusernamer_screenlet
    if not os.path.isfile(self.tempfile) and not self.__create_tempfile():
  File "/usr/lib/python2.5/site-packages/screenlets/session.py", line 294, in __create_tempfile
    f = open(self.tempfile, 'w')
IOError: [Errno 13] Permission denied: '/tmp/screenlets/screenlets.username.running'