You have helped me with this issue once but it

You have helped me with this issue once but it is reoccurring. The Pop Up plugin is not loading. It was working fine until I checked the box to use java script to size and center the pop up (3rd option).

After I check that option the plugin no longer works, even if I uncheck that option the plugin no longer works. Another issue is that when I use Java script to size the pop up (1st option) the right margin is 0px.

Please Help