Yes. Those were the correct files. Now lets see which one you need to comment out. Whats the output of:
apt-cache policy pidgin --- Ubuntu Bug Squad volunteer triager http://wiki.ubuntu.com/BugSquad -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/890536 Title: Entries that are deleted from the Other software list just reappear. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/890536/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
