Hello,
Have just been testing the contact participants option on a new installation and it opens up the new window, but I cannot click in the box and the screen has like a dark filter over it (if that makes sense). If I try to click on the box to get a cursor to type, it justs closes the window. See screenshot of the pop up window looking odd with a filter.
Am using the latest version of your software with Joomla 3.3.6. Site template is JSN Venture Pro. Using the bootstrap template for your software.
Test this with both Chrome (latest version) and various version of IE - (9,10,11)
Have you seen this before?
Thanks Pete