The Now X Agent does a lot of the work for the Now X application. Sometimes when you quit, you may also want to quit the agent. (For example, if you have experienced an exception and want to make sure the agent is back to a good state.)

To quit the agent, hold down the option key when choosing the Quit menu item. When holding the option key, the "Quit Now X" menu item changes to "Quit Now X Services".

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After quitting the agent, the next time you start you will get the "Starting Now X Services" dialog. That's the dialog that's displayed when the agent is starting.
John Wallace
Now X Tech Lead
President, Now Software, Inc.