Not all my apps reload after taking it back to factory settings. Including iBooks
I took my IPad back to factory settings. When trying to reload my apps, some will not reload including my Gmail and iBooks. The buttons next to them say Install, but when I hit apply or sync buttons, nothing happens. I also tried dragging the app icons to the screen displays which did not work. This is with the iPad attached to my macbook in the apps screen selected. Help
iPad, iOS 5.1.1