system crashing..report shows it could be xorg

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http://askubuntu.com – I'm using Ubuntu 12.10 At times my system would have it's screen all messed up it's hard to see what I'm doing. Recently it causes my system to crash and it rebooted itself after five minutes. After rebooting it ask me to report the recent crash. Went to see the details and it's the usr/bin/xorg. I remember seeing this while installing that jockey file that I read I need to install to install driver updates for my graphic card. So far I haven't been able to update my graphic card, ubuntu doesn't still recognize it. Plus, how do I know what happens after reporting a bug do I get an answer fr (HowTos)