I had the same problem.you have to beat the mummified pokey and petey pirahna as mini noy
midget but mini mario

Do you have a network in your house? And is you xbox coctnneed to this network? To stream
music you will need to have your xbox 360 and the computer that has your music files all
on the same network. I would recommend that you upgrade to ms media player 11, this
already contains the media connect software and can be configured to show you all the
music files that media player has in its library. Turn on your xbox and select file
sharing in media player. This is where you grant permission for your xbox to have access
to the media files on your pc. The media player software doesn’t have to be running for
streaming to work, but you will have to use it to do the initial configuration, and you
have to run it every time you add music, pictures, video to your pc. This allows media
player to load the new file details into its internal library.