The fan runs most of the time now on my 1 year old on my 15" Macbook Pro. Just using Firefox is enough to get it started. When talking on Skype my friends note that my laptop is really noisy. Around the area of the F3 key the laptop aluminium casing is almost too hot to touch much of the time. I have reinstalled the OS. Reinstalled Windows, upgrading to 7. I have had it tested with diagnostic tools at the Humac store. They say there is nothing wrong. But surely my US$3,500 laptop can do better than this. Does this sound normal to you guys? Is there anything I can do about it? I feel stupid taking it back to the Humac store and asking them to test it again. The thing is that I use another Macbook Pro 15" at work, 6 months old, the model after mine, and it has none of this behaviour. On another note my battery lasts for an hour at most.