I'm running IOS 4.2.1 on my iPod and i have jailbroken it before, but decided to un-jailbreak. now im deciding to jailbreak it agian, but when i downloaded the program i used before [LimeRa1n] it did not jaillbreak it?? i also tried every other program like Greenp0ison and a few others... i would like an un-teathered jailbreak, but if i cant get one i guess i can live with it..