An Q on an app that controls the internal fan

Hi you all
I was just wondering if there is an app that could control the ibook's internal fan settings so that maybe the computer could run better if the trigger was lowered a little bit??
thanks
Chris

Hi All:
I'm a little worried that my ibook might be running hotter than normal and am wondering if anyone knows of any problems that have occurred from ibooks overheating.
Apple says the operating temps are between 50-95 degrees F. Mine is running, consistently, between 90 and 120F. Usually I use either a stand on my lap or bed, or on a desk/table (with and w/o the stand). I have not been looking at this extensively, mostly I'm just wondering if people have heard of ibooks overheating to such an extent that it causes physical and/or operating problems.
thanks.
oh, and how do I know when the fan has kicked on?
d

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