I've signed up for Amazon Cloud Drive since iTunes Match did such a poor job (I teach music for a living, and of Beethoven's 32 piano sonatas, iTunes Match only matched a couple of them while Amazon Cloud Drive matched all of them). Here's the problem. I added a couple of disks to iTunes over a week ago and Cloud Drive still doesn't show them on my iPhone & iPad. I (perhaps erroneously) blame the sync service on my Mac, but I can't find any instructions on this app (it continuously runs in the background). Worst of all, Amazon just released a version for Windows, so there was no information on the Mac version that I could find on their website. Could anyone help me get the Amazon Cloud Drive Sync Service back up and running?