Well my RDR game broke down tonight.  I was playing it and then had to leave for a bit.  I come home and decide to continue where I left off, so I put my game in my xbox, turn it on, it loads, then goes blank.  It won't go to the start menu.  So I go to my dashboard and reload the game again.  Again it goes blank and I'm not sure what is going on.  It continues to do this after several attempts.  So my question is:  Is my game done for?  Should I just go back to gamestop and return it for another one?  Or should I just wait and see what happens?