I have WordPress, NextGen and the WP-Juicebox Pro plug-in.
The image source is the NextGen Gallery. 
After generating the JB gallery, I check the display on-line.
Some of the photos have the Filename displaying under the photo in the location where the Title Text displays.
In the NextGen gallery where the thumbnails display, there is no data in the  Alt & Title Text box!
As I mentioned, only a few photos in a gallery may have this issue.

I am not a techie, but I asked my husband what he thought - he is a techie.  He showed me how I could edit the generated HTML file.  I'm wondering if it would be possible to provide a simple editor of the HTML file so fix these?

If there is any other information I can provide to help resolve this issue, please let me know.

Thanks!

Which is the most efficient Juicebox product to use to generate galleries from Lightroom 4 with the captions metadata?  I want to upload the galleries to WordPress with Next Gen as the gallery manager.

I am confused whether it would be most efficient to use:
Juicebox builder
Lightroom plug-in
WordPress plug-in

thanks from a newbie!