I got a copy of Last of Us, but it wouldn't load last night. I tried again this morning it loaded but then it was very glitchy. It finally got to the point were it froze. So I went and exchanged the game for a new copy. At first the new copy worked better, but then I tried it reload a checkpoint and it froze up again. I tried turning off the system but it wont reload at all. So much of all the acclaim if you can't even play it. Has anyone had a similar experience?