My son has an Alienware aurora.  When he starts the computer and most of the time that it is running, the light that wraps around the computer and the alien head on the platform is usually blue.  However, a couple of times when he has been on it, the light has turned red.  Also sometimes it flashes red.  Does this mean that the computer is overheating?  Or is there other issues that I need to look at?  Any help would be greatly appreciated.