Had to get a refund on the air because of the screen. Got a refurb ipad 4 whose screen i was happy with and getting ready to enjoy. Now its got a home button problem....button suddenly gets unresponsive for no reason at all. Then after a while it becomes ok, then reverts to not working. I am sick of all the hard resets, restores and other so called fixes....nothing works. This is unusual behaviour for a device that has been conditioned to new and not even 14 days old. I've never had such bad luck with my 5 other apple devices...getting sick of ordering replacements and praying for a good unit.