Hi, guys. Big problem here - I have an LT 3.0 360, but some games like "Arkham City" and "AC Revelations" don't seem to work. I get the error "This disc is not supported". What's wrong and how can I fix it? I haven't flashed the Xbox myself, I paid someone to do it, and he proved that he flashed it by playing "Saints Row the Third", which should be an LT 3.0 only game, so that can't be the problem. But if that's not it, then what is? Thanks!