Hey everyone, I'm after some advice. When I use my mac, at no particular time, the fan speed just shoots up to over 6000rpm (according to iStat pro): and I can hear the difference from the laptop, it's very loud compared to normal fan speeds. It lasts about 5 minutes before returning to a normal 1800rpm (ish). I took it to a genius to ask them, they ran diagnostics on all the hardware and said there was nothing wrong with it - however there obviously is! The screenshot below shows the dashboard displaying fan speed, it also shows that I only had Firefox, iTunes, preview and google desktop open! The fan speed is only around 2000 if I have parallels, skype, office, cyberduck, vlc, adium, ichat, evernote open etc! Any help/advice would be greatly appreciated, thanks in advance!