Hey guys (and gals), hoping someone can help: My Macbook (2.2ghz White Santa Rosa model, 4gb RAM) has it's fans kicking into high gear and they don't seem to calm down until I shut the machine down... When I first turn it on (or wake from hibernation) iStat records my CPU usage at over 50% at times - with the fans climbing to an eventual 6000+ rpm - and I haven't even done anything yet! If I had a combination of Photoshop / Illustrator / iTunes / Safari / Adium running then this might make sense, but I've literally JUST booted into OS X. Being that it's only my secondary machine, I have no problem reformatting the drive with a fresh install incase it's a memory leak / software issue, but does anyone know what else this could be, or how to fix it? *phew* sorry for the long post. Just VERY frustrated.