Please don't reopen a fixed bug at random. Why on earth do you believe this is the same problem?! None of the symtoms you describe is similar. It's not because it has high priority that people will fix your bug more quickly. As you said yourself, "I checked and /etc/groups did not appear to be overwritten".
So please file a new report, and add to it the output of
apt-cache policy system-tools-backends liboobs gnome-system-tools
And try reinstalling these packages with
sudo apt-get install --reinstall system-tools-backends liboobs gnome-system-tools
This reminds me of an old bug that was fixed last cycle.
Please don't reopen a fixed bug at random. Why on earth do you believe this is the same problem?! None of the symtoms you describe is similar. It's not because it has high priority that people will fix your bug more quickly. As you said yourself, "I checked and /etc/groups did not appear to be overwritten".
So please file a new report, and add to it the output of tools-backends liboobs gnome-system-tools tools-backends liboobs gnome-system-tools
apt-cache policy system-
And try reinstalling these packages with
sudo apt-get install --reinstall system-
This reminds me of an old bug that was fixed last cycle.