Freezing on startup, freezes for anything to do with the guide.
My Xbox 360 is freezing for about 1 minute or less when i start it. It also freezes when i press the guide button and look at my firends, messages, recent player and when i start a party. it also freezes if i press the guide button to accept an invite to anything and then when it unfreezes i accept it and then it freezes again and then says i cant accept it. Please help.