Iphone 4 keeps turning itself off?
I got an Iphone 4 on release day and for the first few days it was fine. Now at least once a day it turns itself off suddenly requiring me to hold down the two buttons to reset it. It does this regardless of the available charge in the phone. This morning it was refusing to unlock so its plugged in to itunes atm to hopefully let me into it again!
Any ideas why it keeps turning off or how I can sort it?
Many thanks
Iphone 4, iOS 4