Most likely there is a conflict with bootstrap framework loaded by a 3rdparty plugin. Try to create file templates/mobile_elegance/js/custom_preload.txt with following content:
-
ajax.googleapis.com/ajax/libs/jquery/1.8.0/jquery.min.js
-/media/bootstrap/js/bootstrap.min.js
-/media/bootstrap/js/bootstrap-modal.js
-/media/bootstrap/js/bootstrap-tab.js
-/media/bootstrap/js/bootstrap-tooltip.js
-/media/bootstrap/js/bootstrap-alert.js
-/media/bootstrap/js/bootstrap-button.js
and templates/mobile_elegance/css/custom_preload.txt with
-/media/bootstrap/css/bootstrap.min.css
-/media/bootstrap/css/bootstrap-responsive.min.css
(Note: first link starts with "-
", but Kunena removes "http" prefix when displays links)