i always listen to bbc radio 6 on my computer when i'm doing the housework and yesterday this really creepy thing happened. i heard what i thought was the wind howling outside but when i looked out it was perfectly still, so then i realized that the noise was coming from my computer.so then i thought it was a soundeffect on the music playing but when the music stopped the noise was still there and it sounded just as though the wind was howling through the computer!so i turned everything off, including the speakers! and the noise was still there!!it lasted for maybe another 30 sec or so and then it died away.very spooky noise.if somebody's got an explanation for this, i'd be really interested to hear it!