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When I installed Ubuntu on my laptop, I chose "automatic login", so I was not asked for username and password everytime I switched on.
Later I wanted to change the settings. So I went to systems-->administration-->login window-->security and disabled automatic login and rebooted the computer.
Now the GUI does not allow me to enter username and password. It says "Authentication failed" at the login screen. What can I do to get into the OS again?
I'm VERY sorry. I failed to include the actual line you have to comment out. :-D sorry about that. – Kelbizzle – 2010-02-01T18:32:34.703
Here is a thread on ubuntu's forums. People have seemed to solve it following the steps I mentioned above. (http://ubuntuforums.org/showthread.php?t=581249)
– Kelbizzle – 2010-02-01T18:35:15.680