Anybody else having a Disc Read error on WfC on XBox 360? I'm asking because I bough this game when it first came out and it is still in pristine condition. Then I do an XBox Live system update and all of a sudden WfC is giving me a Disc Read Error. All my other games work fine, it is just WfC. No scratches, smudges etc etc, just decided it didn't want to work anymore. Wondering if anyone else has noticed this problem since the last system update?