I just got an Xbox S with a 250gig HD a couple weeks ago. While playing FIFA 11 the game constantly freezes for 2 or 3 seconds and then continues going. It can happen several times a game. Sometimes I can go a few games without it happening. It happens when i play alone or online. I have Halo Reach but it never happens on that game. I have cleared the cache, reinstalled the game 4 times, reinstalled the title update, deleted game and played it off the disc, with no change. Could my Xbox be defective?