how do I stop 1-click from automatically running?

I just installed NU16, and it will just start running 1-click when I'm in the middle of something else. Isn't the idea of 1-click that I have to click it to make it work?

 

Iif I'm in on a Web page when it starts it will cause the page to close. I can't seem to find anywhere in the program to turn this function off. Very frustrating.

 

Thanks for any help.