Help! My Oblivion always freezes!

Hi, I exchanged my Gears of Wars  for Oblivion two weeks ago at a retail store. I started a game and all was ok. I didn't play since and tried to play yesterday but the game always freezes when I load a game or try to start a new game and this always at the same time. I don't understand cause like I said it worked well the first day. It's a used game. I just want to go hit the seller I didn't do anything to damage my game. I wait for your call.

 Best regards,

Bobby

• Go to System - Console Settings - memory
• Highlight the HDD press Y , Then press the buttons below in the order
• X , X , LB , RB , X , XClick Yes (YOUR GAME UPDATES AND CACHE INFORMATION WILL BE DELETED) (SAVE GAMES AND ADDONS WILL STAY)

• Go to System - Console Settings - memory
• Highlight the HDD press Y , Then press the buttons below in the order
• X , X , LB , RB , X , XClick Yes (YOUR GAME UPDATES AND CACHE INFORMATION WILL BE DELETED) (SAVE GAMES AND ADDONS WILL STAY)

007ybse04