Hi there. My Macbook Pro's fans are constantly running. It only started maybe a month or so ago. I have reset my PRAM, I have cleaned up the hard drive and a verified disc permissions. The thermal paste on my cpu's has been replaced. I have looked in the acitivity monitor, and it the green and yellow lines are spiking, but I don't know why. I do not see any stray activities happening. I haven't upgraded my software, so the setup hasn't changed. Any ideas?