Hi my bro's xbox 360 messed up for the 2nd time since he got it just under a year ago. while me and my bro where playing halo 3 beta, the 3 red lights showed up and it powered down completely. the power brick than began to blink green and red for a minute or two and after that there was no light at all on. we tried to take it off the plug and leave it for a couple of hours but still there seems to be no power whatsoever going into the power brick. is the xbox f*** or is it the power brick? i sure hope its just the power brick. if so does anyone know where i can purchase a new one?