I have windows 7. I set the affinity to CPU 1. I set the compability mode to Windows XP Service Pack 2. I've also tried it on Service pack 3. When trying to just boot it (again, on redsn0w_win_0.9.15b3) But nothing's working. When it says "fetching required files" it says redsnow has stopped working. And once in a while, it goes well, but freezes at waiting for reboot. What do I do now? It worked well on a computer with windows XP. And I'm sure I have the correct ipsw. WHAT SHOULD I DO?!?! >< I don't have any other computers.