I've been jailbreaking iphones since you had to type in code, yet for some reason I can't get greenpoison to work for me! downloaded the latest version and also downloaded xbmc and plex. plugged my atv into my mbp using a micro usb. plugged in the power. pressed and held menu/play/pause until it prompts then releases. It's not entering DFU mode, just saying 'try again'. I've also pressed menu/down to reset atv and tried again and again. WTF? Do you really have to plug in the usb then the power or can you simply plug both in at the same time before running the jailbreak? I've tried both ways, but figured it's worth asking. all I'm trying to do is jailbreak so I can play avi files. thanks!