Hi! Just bought my Xbox 3 days ago from a games store here, and it already gave up on me..... While playing Halo the game froze while loading my savegame, the screen was black and I was forced to reboot. Now when I boot up, the device has a strange ticking sound inside of it, and after a while the eject button blinks green and red, also showing me a screen that the device needs service etc. It doesn't matter if I have a game in it or not, so it must either be the cooling fan, the HD or something else. Is there anything I can do, or do I need to throw it through the store's window?