Hi guys. Recently, I've just noticed something. I sometimes encode videos to other formats on my MBP, and sometimes on my iMac. I use VisualHub, which is an excellent program. It's quite efficient, as usually when I open activity manager, it immediately takes up around 1GB of RAM, and also up to around 195%, meaning 100% of one core and 95% on the other. The diagram shows the cores constantly switch. However, on my MBP, the fans start blaring out LOUD. This, however, doesn't happen with my iMac. Then I can't remember why, but I was running my MBP off AC the other day, with battery out, then I noticed that my conversion in VisualHub took up the same RAM, the same amount of processor, and yet, no fan. But then I tried plugging in the battery, and 5 minutes later the fans came blaring on at 6000rpm. Took it out, and 5 minutes later, it was gone. Is it possible that the BATTERY is heating up instead of the proc?