True story. Last week, my MacBook (April 2008 model) started making a weird sound like oars sploshing though water. I started shutting down apps to try and find the culprit but even after closing down all but Finder and Quicksilver, the sound continued. This was not a mechanical sound, it was comming from the speakers. Googling did not uncover any clues and it was all very troubling until I rebooted and happily carried on about my business.
Update: 9th March – It started doing it again and I know that I did something wierd involving closing apps just as it started sploshing… Now if I could just remember what is was that I did, it would make a great party trick