so I turned on my console today and I heard this loud disturbing grinding noise and then it froze on the start up screen. I quickly shut it off and restarted the console and the ****ing thing illuminated the three ****ing red lights!!!! I did the error code procedure with the sync button and all it does is flash all 4 lights. I have no idea what to do now. I do have the warranty sticker on it. This ****ing pisses me off even more as this is a refurbished 360 FROM MICROSOFT!!! any ideas??