Comment 5 for bug 319714

I used to have this problem but mvo's fix removed the bug for me (I also tried it again with latest jaunty bits just now and it's still gone). I do see some deprecation warnings printed to the console, but the GUI works without any problems.

Bryan, what does "dpkg -l | grep software-properties-gtk" print for you?

mnemo@kingfish:~$ gksu --desktop /usr/share/applications/software-properties.desktop /usr/bin/software-properties-gtk
/usr/bin/lsb_release:81: DeprecationWarning: the sets module is deprecated
  import sets
Warning: the md5 module is deprecated; use hashlib instead
/usr/bin/lsb_release:81: DeprecationWarning: the sets module is deprecated
  import sets
/usr/bin/lsb_release:81: DeprecationWarning: the sets module is deprecated
  import sets
/usr/bin/lsb_release:81: DeprecationWarning: the sets module is deprecated
  import sets
mnemo@kingfish:~$ dpkg -l | grep python-apt
ii python-apt 0.7.9~exp2ubuntu8 Python interface to libapt-pkg
mnemo@kingfish:~$ dpkg -l | grep software-properties-gtk
ii software-properties-gtk 0.71.1 manage the repositories that you install software from
mnemo@kingfish:~$