Folks =) My GF reported to me that her iMac's (new model) fan will often 'go nuts' at startup, and get extremely loud, only seconds after start-up and stay that way until the computer is shut down. I've fallen witness to this only once (and damn that thing is loud, sounds like a plane taking off), but she tells me it's happened at least five more times since. When it happens she shuts the computer down and restarts it, usually causing the issue to disappear, though today she tells me she had to shut the computer down three times before the fan reacted normally. Anything I can do to help, or does the machine need to see an Apple employee? Thanks for any advice.