I have seen countless posts with others having this very same issue.  It's very annoying...  I had this very same problem.  A friend wanted to download her profile to my console.  It wouldn't let her.  Then we tried to download mine to her's.  It's giving us the same error message.  We contacted Xbox live and they said contact Microsoft.  We contacted Microsoft and we were told to contact Xbox.  Is there something going on with Microsoft?  We are we having so much trouble with this?  This is ridiculous.  I have had more problems in the last two weeks with Microsoft and Xbox than I have had in the last four years that I have had a gamertag with Xbox.  Can anyone tell me what is going on here???  Help.  Thanks!!