Saw same error when using usb-creator-gtk under Ubuntu 12.04 LTS 64bit
$ usb-creator-gtk `menu_proxy_module_load': /usr/bin/python: undefined symbol: menu_proxy_module_load (usb-creator-gtk:12501): Gtk-WARNING **: Failed to load type module: (null) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/907319 Title: Trying to choose an "other" server fails. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/907319/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs