I use my new iPad at work, just like I did with my iPad 2, to track appointments, take notes and check Facebook and Twitter of course. Anyway, it sits on my desk tethered to my iPhone 4S and every once in a while (twice so far this morning) it won't wake up when I hit the Home button or Sleep/wake button. I have to hold the two buttons together doing a reset to get it to come back. Anyone else have this problem? I found others who have the problem but they just say do the two-button hold and go on with your life but I want to know why it's doing this.