Just opened my ATV2 today. Hooked to TV, updated the ATV software via on-screen menu. purchased aTV (black). Downloaded SeasOnpass. I follow the on-screen direction (select unteathered, it downloads a file, unpacks it, etc..). Then I plug in the USB cable and hold both buttons on my remote. Nothing seems to happen, and it never seems to go into DFU. Should I wait for an update or is there something I'm missing?