[ubuntu] Blank Screen on Login

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http://ubuntuforums.org – The other day I upgraded from Ubuntu 12.04 ("Precise Pangolin") to Ubuntu 12.10 ("Quantal Quetzal"), but when I logged-in afterwards, all I'd get is a blank desktop! Seeing as I needed a new installation disk anyway, I figured I'd just do a "clean" install and start from scratch which in theory, should fix the problem... But I am now experiencing the same problem! I saw a YouTube video that explained the issue may be because propriety drivers are being used (I elected to use these after the first login) and it explains that there was some change to the (Hardware)