I have a very weird problem.
My gallery works ok overall, except that I have some specific
photographs, that produce a black box instead of a thumbnail, when I select the thumbnail-round from the AdminCP. Check the link: http://www.travelstories.gr/photo/sh...p?cat=4&page=4
You can see that the second and the last photo in this page produce a black box (you can also see almost all photos on the next page have the same problem). If you click, the photo comes up ok. This only
occurs in Firefox
Now, if I change back to normal thumbnail border, it's working ok. Also if I choose another border type like stacks, it also works!!!
This is really weid, I've been trying to see if there's something special about these photos and I simply can't. I have already rebuilt all thumbnails - same results.