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I just bought Mountain Lion. It downloaded and I installed it and it restarted my laptop but nothing happened. When I went on the app store it was in my purchases, but had the download icon next to it. when I click on it it says:

"You have updates available for other accounts. Please sign in to the account used to purchase this to download it."

But I don't have any other accounts, and I am the only user on this laptop.

Any suggestions?

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When you say you installed it did you run the installer app that would have gone into your Applications folder when you downloaded it. – markhunte Dec 12 '12 at 21:20

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