Whenever Rage is running in either full screen or windowed (I play in windowed) it mutes all other audio sources, so music or if I'm watching youtube/twitch.tv they're very quiet. Is this suppose to be happening? If it is, I don't like it and there has to be a way to fix it. Turning down the in-game sound and just turning my speakers up isn't a viable solution because it's not something I should have to do, plus there are some other things that don't get muted like MSN so it SCREAMS at me when I'm playing. Anybody have a solution for this? I havn't seen other threads about it.

Do you mean the *glitch* sound ? I got the same problem, why there is no fix !