Ubuntu Tweak 0.4.5 give a error message when i go to Startup > Autostart menu

[kernel_script]

Ubuntu Tweak 0.4.5 give a error message when i go to Startup > Autostart Menu, and after i choose to file a Bug, this message appears: "This module is error while loading."

I'm using Ubuntu 8.10 with the standard GNOME Desktop Environment.

At first, i tried the GetDeb Package for Ubuntu 8.10. But late i've found the PPA for it. I cleaned my Ubuntu Tweak configs the most i could (I don't know if i succeeded or if it interferes with Ubuntu Tweak behavior) and installed through the PPA available on the official Ubuntu Tweak Homepage.

Here the error message:

Traceback (most recent call last):
  File "/usr/share/ubuntu-tweak/mainwindow.py", line 507, in setup_notebook
    page = page()
  File "/usr/share/ubuntu-tweak/autostart.py", line 344, in __init__
    self.treeview = AutoStartItem()
  File "/usr/share/ubuntu-tweak/autostart.py", line 125, in __init__
    self.__create_model()
  File "/usr/share/ubuntu-tweak/autostart.py", line 217, in __create_model
    desktopentry = DesktopEntry(item)
  File "/var/lib/python-support/python2.5/xdg/DesktopEntry.py", line 25, in __init__
    self.parse(filename)
  File "/var/lib/python-support/python2.5/xdg/DesktopEntry.py", line 36, in parse
    IniFile.parse(self, file, ["Desktop Entry", "KDE Desktop Entry"])
  File "/var/lib/python-support/python2.5/xdg/IniFile.py", line 74, in parse
    raise ParsingError("[%s]-Header missing" % headers[0], filename)
ParsingError: ParsingError in file '/home/kernel-script/.config/autostart/.directory', [Desktop Entry]-Header missing