Just noticed that the cooling fan isn't on.  The lap top gets pretty warm on the bottom.  Is the fan suppose to be on all the time????  Does it cycle itself?  Seems like every other time the fan has been on.  Now, I did have an issue with a clicking noise with every key stroke I made.  I went into msconfig and changed it from selective startup to normal start up and the clicking noise stopped.  Then I noticed the fan wasn't on.  Thought that maybe by changing back to selective start the fan may come back on.  I changed it back to selective mode and the fan still doesn't come on.  What do I need to check or change???????I just got the laptop about a week ago.  Never had a laptop before.  I really don't know what is normal or what is not.  I think the heat can't be good for it????Thanks for ANY help!!!!!!!