TS3204 iMac ticking noise

My iMac which is only 3 months old has started making a permanent ticking noise that comes from the back and i am starting to get worried and annoyed! Please help!

ticking sound sounds like something the hd readhead would make

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    I have a 2005 Jaguar xj8.  When I tried to upgrade my 3gs to a 4g  two years ago, I got a ticking noise in the speaker and no one on the other end could hear me.  I had to go back to a 3gs.  My phone is shot and I need to upgrade.  Has there been a fix to the problem?  Apple told me there was some sort of interference with the airbag system.  Jaguar was totally unhelpful.

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    I bought a new 30GB iPod (video)about a week ago. Everything works but it seems to delay quite often, especially when changing songs. Sometimes it just won't switch songs at all when I click the next or previous button. Also, you can occasionally hear strange ticking noises.. like the inside of a clock or the sound a computer makes when its trying to do a lot at once. This happens when scrolling, changing songs, etc. I'm just wondering if this is normal or if any other owners of this iPod have experienced it. Because my iPod is new I want to figure this out and see if I should call and try to get a new one to avoid further problems in the future. Thanks for your help

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    Hi. Updated my code from the one above to this:
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