For some reason, my computer has started to make door-opening-and-shutting noises. It's been happening for about a week, but only when I'm online. (Dare I confess that my ISP is AOL?) What on earth is this? Is it just some odd noise that AOL, in its no doubt superior wisdom, has chosen to install? I've already scanned the computer a couple of times with my antivirus program, which is up-to-date.
Nothing else tangible appears to be happening, so there's no emergency, but still.