Over the last six months, I've come to accept that Flash, Handbrake and copying 2,000 mp3s from an iPod are all tasks too demanding for my Macbook. The poor C2D would max itself out and hit temperatures above boiling. Ok, you're 5, you're not what you used to be - I understand. I won't push it! No more Handbrake! But last night it happened while I was putting a 180 song playlist on my iPhone. ಠ_ಠ What the heck could be causing this? Performance is excellent until I do something, uh, demanding. Like putting mp3s on my phone (WTF). Once the demanding task is completed, everything goes back to normal. It's never shut itself down in self-defense. Could it be the thermal paste? Logic board? SHOULD I THROW IN AN SSD?! Or is this a normal and completely safe for a 4,1? Because it's kind of getting in my way, and I've got to keep this one going until the end of the year at least.