Macbook Pro, clicking/clunking noise near Magsafe Power Connector?

Hi all,
I recently purchased (3 weeks ago) A brand new late 2008 old-model MacBook Pro with full 1-Year Apple Warranty.
Just earlier today, near the magsafe power adapter there is a really audible clicking/clunking noise, sometimes it wont do it for ages, sometimes it does it 4 or 5 times in one minute... It wasn't doing this at all previously, but now it has started doing so..
Does anyone know what this could be? I've googled and read through a few topics but there aren't really any problems that sound similar to mine.
Thanks,
Paul

Since one of the possibilities is the hard drive, be sure to make a good back up of your data and keep it up to date while you are researching what the noise is. Also, open Disk Utility and see what the S.M.A.R.T. status is.
Another possibility might be a fan.
You could run the extended version of the Apple Hardware Test and see if anything turns up in the form of an error code.
These are just a couple of general suggestions. Each build has its own idiosyncrasies, and you will likely find out more specific information in the late 2008 forum.
Good luck!

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