I'm on Lion at the moment and want to reinstall Mountain Lion (I had Mountain Lion already and bought it a year ago, I've done a fresh install now however, which installed Lion). When I click "Purchases" I don't see Mountain Lion anywhere. When I search for it however, it does appear and it says I can download it (where the price is usually written), hinting I don't have to buy it again. But just wondering, why doesn't it appear under "purchases"? Many thanks.