When you try to install Ninjaboard, it installs partially before seemingly "hanging" or "freezing".
Why This Happens
1.) Install Ninjaboard normally. When it hangs, navigate to another page in the admin panel.
2.) Unzip the Ninjaboard install zip locally. You should see a number of folders and files. One of the files is called "packages", and inside this you will find a component and at least one plugin. Install all of them as you would any Joomla extension.
Done! Ninjaboard should now work perfectly for you.
Extensions Known to Break Our Installer