This was extremely helpful. I am a junior in high school who was issued a Mac for class. I am one of those anti-Apple people, so I get easily frustrated with them and tend to beat them up a bit. Consequently, I broke it. Being low on funds, I couldn't afford the repair costs, let alone had the nerve to own up to my actions and tell the teacher about it. SO....after staying up an extra couple hours researching the problem, I discovered this and decided to give it a try. Despite already being somewhat tech savvy, I found this resource very helpful, even more so after re-reading it and watching a couple how-to videos. The problem was fixed in no time.
Lets just say, thanks to this site, the school never found out that I broke the laptop. :)