I have my RMBP on a wood table watching the old iron man 3 trailer in 1080p (from apple trailers) and 15 seconds in bzzzzzzzzzzzz--aaaaa-aahhhhhhh fan kicks in. This used to happen on my 2011 macbook pro 13, but i feel like it happens more on my new one. Is this normal? Or am i just (without really thinking about it) doing more cpu intensive things because of the new rmbp? I didn't feel like i was doing anything that CPU intensive. Porn loads fine