I have bought a new ipad today 32gb wi fi 3G got home from store and started to charge it...it is now 5 hours and is showing nothing at all except when I try to turn it on there is a USB diagram and an itunes logo...that is it.. it does not show how much charge is there or whatever. I am wondering how long it is going to take. Can anyone help is this normal? I have found the manual very disappointing and also the help on line.