Re: Updating video drivers
I don't remember reading anything about performance improvements with the absolute latest Intel drivers. Best to just stick with what you have. If you really want to tweak, Intel has a driver installer available on their website.
I try to treat the cause, not the symptom. I avoid the terminal in instructions, unless it's easier or necessary. My instructions will work within the Ubuntu system, instead of breaking or subverting it. Those are the three guarantees to the helpee.