I have a 4th generation ipod touch iOS 6.1 and I downloaded redsn0w 0.9.15b3. when I attempt to jailbreak my ipod I constantly get a message saying theres a "USB communication problem". I've tried restarting my ipod and my computer but neither of those worked. I've used different USB cords in different ports and that didn't work. I've restored my ipod altogether and that hasn't worked either. Is there something I'm doing wrong? I'm only somewhat educated on this subject matter so maybe I'm missing something. Please help :/