This is an embarrassing first post I tried to jailbreak my ATV2 on a 10.4 macbook, fiddled around to get into DFU mode, and my ancient iTunes would only recognize it as an iphone, so I left it alone until this week when I bought a 10.6 imac. Now I can't get anything to detect the ATV, not even as plugged in. I've fiddled with plugging/unplugging power/no power, usb/no usb, everything. But iTunes won't detect it, disk utility won't detect it, PwnageTool, SeasonPass, etc.. iTunes detected it for a second a few minutes ago, but I can't get it back! Any advice? Thanks!