Clicking sound when moving computer around
I have a early 2011 15'' macbook pro, and when I pick it up off a desk (when it's still running) and I turn it a bit I hear a click sound. I know there's an accelerometer built in to protect the hard drive, is this normal (due to hard drive protection)? Because I had another macbook pro before but I never heard this click sound. Should I go and get it checked?
Any help is appreciated.
Macbook Pro (Early 2011), Mac OS X (10.6.8)