recently my xbox would just work some times, and at the end not at all. after some searching on different forums I found that it was the bios that had been damaged. So i had to take out my chip (matrix) and re-flash it! after this my xbox was back to normal again. Can anyone tell me why this happend, so I can try to avoid the same situation again, since it's a f***ing hassel to take in and out the chip!