hello everyone! i'm bummed. i've been enjoying my ipad for a few days now and noticed a dead pixel on my screen. so i'm returning it for a replacement. this is my first ipad. i have an iphone but never had to exchange or return it. so my question is: how do i prep my ipad before returning -- to make sure no information will be left on my ipad when i return it? i've read on different threads and on the internet about using the "erase all content and settings." if i do this, will i still be able to turn on the ipad and make sure that nothing is left on it? or will it turn off and the only way to turn it back on is by attaching to itunes and going through the process again? thanks for your help!