@janzomaster
As I remember, the Shutter effect did work for me before, but, as I’ve said, it didn’t adjust the size of the images if they were too big on a smaller display.
In my case the images open without any java effects if in the “Effects” menu, from Gallery/Options, the Highslide or Lightbox effects are selected (and which, I understand, are not installed by default), so it’s normal that it does so. If you selected Thickbox (like here) and still does this, I guess you could try to install the plug-in again. You have nothing to lose…