For a while now, the fan exhaust on my macbook has been constantly rising past 6,000rpm when I'm simply watching a YouTube video or even just listening to iTunes alone. I've of course googled this problem and found that many others with this problem solve it by taking a look at Activity Monitor and end a process they didn't realize was using much of the CPU. When I tried this I found that Activity Monitor was actually taking up the most power as it was the only application open and it was only using 0.5-1.0% of the CPU. Also when I try to watch a video on YouTube or any other site for that matter, the macbook heats up instantly, the fan reaches it's max, and the computer itself becomes very glitchy (mouse pointer skipping all over, delayed actions, etc.) As you can imagine this has been extremely frustrating, as it hinders what I can and can't do, from basically surfing the web to watching a video online. Any and all help is extremely appreciated; I just can't figure this one out!