I have a macbook pro and it seemed to be heating up. I made an appointment and the folks at the apple store ran a diagnosis on my hardware. Everything checked out green, but its still hot. I downloaded Fan Control and noticed that it says that the Left Fan is 2077 RPM, the Right Fan says -1 RPM - shouldn't the right fan also have activity? Thanks in advance! It was actually much hotter, so they suggested I do a clean install of Lion, which seems to have helped the problem somewhat, but I am concerned that the Right Fan doesn't have any activity.