If Aperture 3 isn’t starting up properly or performing normally, try these basic steps to troubleshoot the situation. Please note that these steps aren’t exhaustive and are not intended to cover any specific issue. These are fundamental, basic steps for getting Aperture into good working order, and are the steps most often suggested by AppleCare Technical Support. If you are using Aperture 1 through 2 refer to this article. 

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Aperture 3: Troubleshooting Basics

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