Hello: I know a similar thread was posted, but it mentioned the fan kicked on when light application usage was taking place (e.g., running safari). The minute I turn my MBA on, the fan kicks on. It's not running at full speed (It doesn't sound like it), but I can still hear it. It kicks while using Leopard, and when I switch over to XP (I use bootcamp). It's noticeable. Anyone else with this issue? Is it worth calling or bringing it into Apple? THANKS!!