I reformatted my computer and reinstalled OS X. When I connected my iPad, iTunes pops up as normal. However, when it says that my iPad can only be synced with one computer p), I told it to transfer purchases. However, it only transfers my books (???) but not my apps. Now I want to sync some movies into my iPad, but I don't want to because it will mean iTunes will erase all of my apps. What the ****?