I installed metaslider and had problems and raised the follow with yourselves, which was resolved via email: http://wordpress.org/support/topic/drag-and-drop-reorder?replies=11
I downgraded to version 1.3 so that it would allow me to use png images. All seemed fine until i am now testing in safari, and there is a bug that removes my navigation. It appears to be with the styles -webkit-transform:translate3d. Is there anything that i can change on version 1.3 to make this work? as i can't upgrade to the current version as png's don't work.
Also, this only affects the flexslider on slider mode, if i change it to fade mode this doesn't happen.