Hey I was just sitting here watching seinfeld and writing an E-mail (I think VLC and Firefox were the only apps running) when this strange high pitched beeping started. It was quite high pitched, had like a slight quaver in it. Kinda like a midi file of a grasshopper or something. It kept going at like 1.5 second intervals. Um my bluetooth keyboard is running outta battery, but I doubt that's it. Dunno what other info you need. OH yeah, intel imac 20", the first series one. I restarted and it stopped. Anyone know anything about this or if it's something I should be worried about?