I have an Apple TV (2nd Gen) and it has the 4.0 firmware. It seems that all others have 4.1, and I suspect the 4.0 is causing problems in my effort to jailbreak the device. Every time I try with Pwnage tool, iTunes just ends up restoring the device to 4.0 factory settings. This despite the fact that the tool appears to be generating the requisite custom 4.1 ipsw. Anyone have a suggestion or workaround?