code: def _fix_key(self, key):
          
          if not key.startswith(self.GCONF_DIR):
              return self.GCONF_DIR + key
          else:
              return key
docs: Appends the GCONF_PREFIX to the key if needed
  
          @param key: The key to check
          @type key: C{string}
          @returns: The fixed key
          @rtype: C{string}