updated 09:13 am EDT, Wed October 23, 2013
Mac App Store failing to recognize existing installations
Some users of iLife '11 and iWork '09 are having trouble upgrading to the new versions released yesterday, according to complaints. The difficulty is that when trying to download the new software through the Mac App Store, the store fails to recognize the earlier installations. Instead it responds with an error message: "[The app] is already installed and was not purchased from the Mac App Store. Do you want to buy [the app]?"
An Apple spokesperson states that the company is aware of the problem, and working on a solution. How and when it might arrive, though, has yet to be announced. iLife apps include iPhoto, iMovie, and GarageBand; the iWork apps are Pages, Numbers, and Keynote.