So A while back I jailbroke my iPad. I changed the hostfile server stuff in order to do it. Now I can' t upadate to 4.2 b/c the update can't verify with Apple. I need to change the hostfile server info back to its original state. thing is, I can't remember how to find the host file or what the original server was. I'm on the verge of just re-installing the OS. I WANT 4.2!!!! Could someone help me out please?