Laptop over heats even with a fan I've had this laptop for like... 5 years? I have had a fan under it for at least half that time, cause it used to over heat alot. It seems to still be over heating still... The bottom of my laptop feels cool, but laying my hands flat on the keyboard, is really warm, almost hot... Should I try to clean the laptops actual fan? If so, is it hard? I've never done it before, but I'm assuming I should... (Sorry I'm not that computer techy) Thanks for any help!