When I try to select an image for a new (or existing) slide, the screen turns dark grey. I expect that a screen where I can select an image pops up but nothing happens.
I have this issue on several servers (local and online), all with Joomla 2.5.16 and the latest version of Image Show (1.40). The issue occors in all browsers: IE11, FF and Google Chrome. In browser Opera just nothing happens.
This is the screen I get:
How can I solve this?