Greetings, I got my Macbook on tuesday, and I was impressed. With bluetooth accidentally turned on (as well as airport) the Macbook lasted for about 4.5 hours. I then discovered the dreaded moo. It didn't bother me that much but I figured that as the SMC update was showing good reviews I should update my Macbook. Now the fans are very loud most of the time and due to the low-volume of the Macbook it is sometimes hard to hear things, I am not kidding. The fans seem to turn on randomly, even when the Macbook is turned off! Now the battery (without bluetooth turned on) just doesn't last as long, presumably due to the fans. It lasts about 3 hours, which is kinda bad considering this started on wednesday. Do you think I should call Apple? EDIT: Sometimes now, the battery icon changes so that there is an X in the middle, signifying no available battery, and then the Macbook turns off a few minutes later. What's up with that?