Unibody MacBook coughing dust

[LiquidHarmony]

Strange, when the fans start running fast as it heats up in Windows, it feels like there's something loose inside the MacBook when I tilt it. But more noticeably, it 'coughs' out dust through the ventilation. Like, lots of dust. It happened to me twice in my 8 months of ownership. If I didn't know any better I would have thought it was some sort of advanced mechanism to clean the insides of dust.

Can anyone tell me if there's anything to worry about? and why there seems to be something loose inside the computer only when it heats up?

[Exile]

I'm a newb here also but the dust coughing has to be some sort of problem. If I were you I'd have it checked out by someone who knows their way around computers.

[clyde2801]

Try taking the back off and hit that puppy with some compressed air.

[MarkCooz]

or possibly take it to the apple store and let them check it out.

[clyde2801]

Sure, but then you can't play with compressed air.

[Richard1028]

Sure, but then you can't play with compressed air.You're recommending somebody open their "under-full-warranty" mackbook and hosing it out with potentially damaging compressed air?

Wow. The advice given here these days.

[clyde2801]

I honestly don't see how a blast of compressed air could damage his "mackbook". :D I did the same to mine after replacing my ram recently; there did seem to be a fair bit of dust in it. Finally, I could see a genius looking at a macbook caked in dust inside and trying to say that the machine had been misused and denying coverage.

I also find it amusing about someone lamenting "the advice given here these days" when they have been a member for a whole six months.