i bought a SANSA E250 and the second day i bought it it wasn't working. I hhoked up the my MP3player to my computer but the computer wasn't recognizing it so i put it in the usb port thats in front of my computer and when i took the usb out my mp3 player wasn't turining on. I legt for charge but nothing happened and only the back of the mp3 player got hot. a few days later when i tried it again a lil flash on the jog dial came. what do u guys think the problem is. Can any 1 plz help me