I recently bought a USB Logitech headset. It works fine and everything, but like the title says, the sound input volume never stays still in my system preferences! D: I noticed this through Skype and I've already checked Skype's sound settings and it only goes as far as choosing which device is selected; so it must be a Mac problem. I left my system preferences open on the sound panel while I was using my headset once and it the input volume seems to change when I speak into the mic after a moment of complete silence where the mic doesn't pick up anything. It's pretty frustrating because I constantly have to go to my preferences to up the input volume if it made its way down to a low value. Does anyone know how to prevent this? I have an Intel based MacBook running on Snow Leopard. And this is my headset. Yes, made for the PS2/3 but aside from the input volume it works fine and all I had to do was plug it in to use; no drivers required. Also... a quick unrelated question... as you'll notice, my headset only has one speaker; so should I be changing the output balance to hear all of the sounds going through my computer? My balance has always been set right in the middle.