A recording of it.
It just keeps on randomly playing when my laptop's on, around every minute or so. I've not installed anything new, no odd processes are running, nothing is running when the system starts up that shouldn't be, AVG and Spybot checks are clean, all Windows sounds are off ('No Sounds') and it does go if I mute the master volume control (I'm running XP Home SP2).
It's more than a tad annoying. Anyone have any ideas? I'm completely stumped and I like to think that I'm not stumped by many computing things (well, maybe not in Linux, but Windows..). People on other forums have suggested virus scans, it being an alert from the BIOS (I see no sound options in my BIOS) and just that I'm being daft and should reinstall Windows (I don't really want to..).
It's really, really annoying because I do quite a bit of audio production and that going off every two minutes really does stress you.