I received my new iPad 3 today and have had nothing but trouble with it. After use, it frequently wont switch back on. Sometimes I can get it working by doing a reset, home and power buttons held for 10 seconds. Oher times even this doesnt work. If i then leave it for several minutes, and try a rest again it will come back on. Have I been given a faulty unit? Is there any way to check? I am currently doing a restore in itunes, hoping that will help.