I received an iPad 2 as a donation for my classroom. It is running 4.3.3. I can't imagine why it was never updated, but I can't get it to update in iTunes. I get error 9. I've tried all the "fixes" for error 9 that I've run across. Different cord, update system, different computer, etc. It is pretty much useless as to me without an ios upgrade because most apps won't work. Ideas?