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Mac OS X Blocks Installation of the Desktop Client

If you've installed Apple's latest version of Mac OS X, Mountain Lion, you may see a a dialog that warns you about opening applications from "unidentified developers". The default security settings in Mountain Lion does not allow applications from unidentified developers to be opened. In general this is a good thing, as it prevents rogue applications from doing damage to your computer. However, some applications can be trusted (like the SureClinical one), and it isn't immediately clear how to open them. There are two solutions to this problem:

  1. Instead of double clicking the application icon to open it (which won't work in this case) you can open it by holding down the Control key and clicking the icon. A menu will open up. Choose the Open option. Your computer will still open a dialog warning you about the fact that the app is from an unidentified developer, but this time you will have the option to open the app. Thankfully, Mountain Lion will remember your choice for this app and won't ask you again the next time you double click the app's icon to open it.
  2. If you open up your System Preferences (accessible via the Apple menu in the top left corner of your screen) and click on Security & Privacy, you'll see a section called Allow applications downloaded from. By default this is set to "Mac App Store and identified developers." If you change this to "Anywhere," you'll never get the warning again about opening apps from unidentified developers. However, while this approach may be more convenient, it is also less secure because it allows you to freely open applications that might be malicious. Hence, we recommend the first solution.

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