I upgraded my macbook pro 13 to yosemite missing out mavericks. Issue is Ibooks. I bought a lot of books on my ipad mini on the same itunes account as I use on my macbook but only some of my ipad books show up in my macbook Ibooks library. I tried to download them again to get a message that I cannot because they can only be downloaded on a machine running osx 10.9 or later but mine is running 10.10 and with ibooks 1 or later and mine is 1.1. Any suggestions?