and??? there are a lot of things that could cause it to make a noise, but if the computer is working fine, it's not really a problem. so the short answer is: if it's still working fine, you're better off to keep using it until some actual problem develops because every time you take a computer in for service there's a chance that the service could create an actual usage problem (which is not what you have right now). this is not to make excuses, it's just being realistic. if you buy a new car and find a noise after a couple weeks it's kinda the same thing, the luck of the draw because even things made on an assembly line are slightly different.
Yeah okay thanks. Like if I physically shake it nothing happens, yet if I randomly pick it up it will make a small noise. It kind of reminds me of lime heaters or ratiatiors how they tink when they begin to heat up. Maybe the harddrive?
The soft tink sound in the 13" MBP is the hard drive's head parking (presumably to conserve power) . Sometime's it is accompanied by a short beachball. In our case the tink sound occurs even when the computer(s) is stationary so it is not being caused by the shock sensor.
It seems to have started around the time of 10.6.2 update.
With my 13" MBP the sound dissaapeared when I installed a new 500 gb Toshiba Hard Drive.
My wifes 13" uMB also started to make the tink sound so I replaced hers with the same model 500 gb Toshiba hard drive and the tink sound stopped on her machine too.
I think it has something to do with the firmware that Apple is installing on the hard drives and their desire to squeeze the maximum battery run time.
Whatever the cause I am happy that our machines are no longer afflicted because even though the tink is very subtle, once you become aware of the sound it's a bit annoying!