Sync'd my iPad with iTunes to add more music and after sync iPod refused to open. Tried hard reset on iPad and had no joy so did an iTunes restore and used most recent backup .. iPod again refused to open. Did another iTunes restore and set it up as new iPad. Thankfully, iPod now opened and I added the same music with no problems, but obviously lost all my data from other items I had installed on iPad. Anyone else had this problem ?