I checked our demo gallery, and they work fine from there. See for yourself in our
demo gallery.
small button in the addthis menu:
Big button in dropdown:
I also tried the BIG button from your site, and this is what I see ...
I can see there is something with the link, but not sure what it is ... I think I know that it is related to one or more of the following though:
1. You have SWFAddress disabled. Imagevue or flash can not handle deep linking without the SWFAddress (#/content/location). How did you expect to be able to link to a specific image?
2. You are using ápóstróphés in your actual folder names. I don't know fi facebook likes this, because it needs to convert the characters. This is not allowed from the Imagevue admin interface (just to make things like this work), so I assume you must have created folders manually.
3. You have disabled both titles and descriptions? This will leave empty values for this ...
I am 100% sure it is related to one or more of the above ...