Hello, I just got my first mac a month ago I watch clips on MplayerX and listen to music on itunes. Sometime the sound normalize in a wrong way during songs/between songs and while watching clips. It can be really annoying sometimes. Since it happens both on MplayerX and itunes I'm assuming it's a setting in Mountain Lion, but I couldn't find it in the settings. How can fix that? Another quick question: in MplayerX when I want to skip a few seconds in a clip I'm clicking right and left arrows, but each click skips 10 seconds, which is too much. How can I set it to be less than 10 sec? Thanks!