I bought a used mid-2011 MBA from a private party. The previous owner 'wiped' the machine. When I got the MBA I created my own user ID, and have bought apps from the Apple appstore without any trouble. I've also downloaded updates for Lion without any trouble as they've arrived. However, the machine doesn't have iPhoto. I went to the app store to download it and I get prompted with something along the lines that says "This app. is already tied to another user account." What do I do? My theory is that back office-wise my apps. are licensed to my Apple account. But, the copy of OS Lion is still technically licensed to the previous owner. This is pure theory. However, if that's the case, how have I been able to continue to download OS updates? I was thinking that maybe when I opt-into the Mountain Lion release, that will install a clean version of the OS and I will be legit. Or, will I even be able to? Any suggestions on how I get iPhoto? Do I wait for Mountain Lion and see if that gives my machine a fresh start? Or do I technically even have the license for OS Lion?