[ubuntu] 12.04.1 partial upgrade broke X

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http://ubuntuforums.org – This is upsetting, as I finally had my Gazelle Pro running smoothly after the 12.04 upgrade months back. Anyway, I got the message today that a system upgrade to 12.04.1 was available, I went to run it, and it tells me I can only do a partial upgrade. I run it and on reboot I get command line. I tried to restart lightdm and it fails. Switch over to gdm and that fails too. Problem seems to be with Xorg or nvidia driver. From Xorg.0.log: NVIDIA(0): Failed to initialize the GLX module, blah blah blah NVIDIA(0): Failed to initialize the nvidia kernel module. blah, blah, blah ... (Hardware)