clicking sound

[sebi2010]

Hi!

I have a new Sony Vaio VPC-EB1M1E/WI (Intel i3, 4GB RAM, HDD WDC WD5000BEVT-26A0RT0 500GB, Windows 7 Home Premium) for about one week.
Recently, I noticed a strange sound coming out my laptop. Every 5 or 10 seconds, I hear a sound like a click. It is very similar to the sound when you double-click a folder in Windows 7 (but the sound I hear is from inside the laptop, not the from speakers).
This sound seems to come from the right part, under the numeric keys.

What can it be?

Thank you!

[Twinsen]

It's the sound of the hard-drive. Nothing to worry about.

[sebi2010]

It is very annoying to hear a click every 5 seconds. And I don't think it's normal for a new HDD to make such noise. I found that this problem was also encountered to some past models. I am waiting now for responses form Sony and Western Digital.

UPDATE: Both Sony and WD said that the HDD should be replaced since this "clicking" noise is not something normal. I will get a replacement for the laptop from my seller.