So I just bought this computer off Craigslist with Ubuntu on it.
I was a complete retard and changed the administrator password and forgot it among people coming in and out of my room.
I followed this http://www.psychocats.net/ubuntu/resetpassword
BUT, every time I tried to put the password in for the second time to confirm it, I got this thing saying "Authentification Token manipulation error" or something to that effect. What is this and how can I easily fix it?
Remember, I am completely new to this and dont understand ANY ubuntu lingo, so please be explicit.