ok, so I believe that i shut down my macbook but was mistaken and it did not shut down completely. the next day i opened it up and the screen wouldnt turn on like it usually does after simply being closed without powering down. i wasnt around to use it till a day later, being today, and i thought it was just a low battery problem. now the battery is fully charged and yet it is still in the same state. there is one light on but it is not bright like it is when sleep mode is not taking place. also, it sounds like its running; i can hear the fan running but both the keyboard and screen are refusing to turn on. ive gone on the apple support page and have attempted what they suggest, but it didnt work. i dont use any plug in devices like a mouse, the only things i plug in are the battery charger and my ipod. has anyone had this problem? does anyone know how to fix it?