Lightbox not working

Lightbox isn’t working for me either. This is what it looks like when I click on a thumbnail: https://postimg.org/image/v2h6a40zv/

There is no way to uncheck the radio box for FancyBox 2. I don’t want to use Fancy Box 2, I want to use Colorbox! This is what my settings look like: https://postimg.org/image/4lx6fxs29/

HELP!

I’m having exactly the same problem.
rgruenke, How did you solve the problem?
Thank you!