Hi, I've got a 2 x 2.66 GHz Dual-Core Xeon, 4 cores. Sometime when I'm composing the cpu can jump pretty high and float around 25%. I'm guessing that this is the overall display for the whole cpu usage on the Mac being used? When I click on the cpu meter to get the pop out display all I see is one core being used and a little of another. The one core which has most of the cpu usage, roughly mimics that of the cpu meter. Though how comes the cpu meter can get so high, when this isn't reflected on the pop-out display?