k i have a soft modded xbox with evox. I used the splinter cell exploit. I overwrote the default.xbe file and now my dashboard wont load. it does that loading sequence with the green bubble, then the words microsoft appear and then it just goes black and nothing happens. Not even my ms dashboard works. I tryied the xbl upgrade but it gives me error 21. But before i overwrote the default.xbc i made a backup so i have it on my pc. Is there anyway i can fix this.