Jailbroke using Seasonpass now jailbreaking using iReb

I jailbroke my Apple TV 2G using a friends MAC via Seasonpass. Installed XBMC. Everything was working fine. The device got accidentally turned off. I no lobger have access to a MAC so I'm trying to jailbreak via iReb. I cannot get the device to enter DFU mode. Is that fact that I'm jailbreaking using a different software causing the device not to go into DFU mode. I installed itunes on my windows laptop, but the apple TV isn't recognized. Any siggestions?

OK, I restored through itunes, but still can't get into DFU mode with iReb. Spent 3 hours last night. I think my menu button is workn out. No clicky-clicky anymore. Ugh!!!