I have a 32gb Air, and tonight I got a notification that my memory was almost full, which surprised me because I didn't think I had that much on it. As you will see by the screenshot I attached below, I think I'm right - something isn't adding up. It looks like I should have approx 11gb used, but it says I'm using 27gb (there are other apps you can't see but they don't add up to much, I added 1gb to account for those). Any ideas!?