Hi, The slider when it asks you to turn off the iphone is missing. I just hold the home and power button and then just shuts off. IT doesn't ask me anymore by sliding it. DO you know how to get this back? I have called apple already and they made me do a restore as new iphone and just incase its software issues and it is still missing. I have restored as new iphone twice already. Is there a quick way to fix this that i dont know?