Help. Im on beta3 4.2. When the ios 4.2.1 , it wont let me update saying I have the current version. And so I waited till it expires, this morning . Beta3 expired. I saw this USB image and Itunes saying I have to connect to Itunes. Connected to Itunes, a pop-up came out saying it is expired and needed to upgrade. I click ok. Then I hit update, BUT still Itunes says I have the latest version. Now what do I do? I already did hard reset. Same thing happens. Any thoughts people??