So I just got a 64g ipt3 for Christmas and I tried jailbreaking it with blackra1n on windows XP and it won't work. I know its tethered and I've run blackra1n twice (once to jailbreak and once to boot) many different times and nothing is working. Is this because its on windows XP or what other problems are possible? All help is greatly appreciated! NOTE: I've jailbroken my 16g ipt2 several times before so Im not new to this.