I'm having an issue with a some games I bought. They can load fine on my 1 xbox but when I try loading it up on my 2nd xbox, it would freeze during the loadup, I thought it was trying to load but when I returned to it 10 min. later, still at the same screen. Since then, I've modded that system and even went as far as swapping the dvd drive (Swapped a Thompson for a Samsung drive) and same problems occuring. Any suggestion on why this is happening?