I have tried to update iOS 4.3.3 to 5.1.1 using a computer that was never connected to the iPad before. iTunes said that I need to backup all purchased items because they will be erased. But when I tried to sync the iPad apps, iTunes said the iPad is synced with a library on another computer and it can only be synced to a single library. It asked if I want to replace the current iPad library with the PC library. I did not confirm that since the current PC iTunes library has nothing on it and replacing the iPad's library with the PC library may delete the library I am using on the iPad
So at this point I gave up on the upgrade and came here to gather some information
What should I do in order not to lose purchased items from the iPad? I want to upgrade via iTunes but it seems this is an infinite loop, and that breaking the loop by confirming any of the suggested iTunes messages may delete my purchased items.
The previous time the iPad was connected and files on it were managed via iTunes, it was a mac and that mac is not available anymore