[ubuntu] Installing first updates for Ubuntu 12.04. Potential for touchpad problems?

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http://ubuntuforums.org – I just installed Ubuntu and ran the first round of updates and rebooted. I'm not having any problems as of yet, but in Googling Ubuntu 12.04 updates, I see a lot of people are having issues. Is there anything I need to avoid installing with my setup? (See setup below.) Also, I had some issues with an unresponsive touchpad when using netbootin on a flash drive. I saw the forums had dozens of similar questions. Since my touchpad is working now, is there any reason (or update) that might cause it to stop working in the future? Is it coincidental that my touchpad problems always occurred w (Hardware)