The title kind of says it all. Sometimes the machine switches on just fine. Other times there's a delay and when I touch the screen to type my pin it goes off again. From time to time I get nothing and have to hold down the volume key with the power button for ages to get it to come to life. I'm guessing this isn't normal? I'm on a 4200 that never got the dodgy firmware so it "should" be ok in that respect... any clues peeps?