I find that Safari does not display the preview of
File:Van_istendael675.jpg correctly. It displays as a dark negative
image. Camino does not display the preview and comments as follows on
the file itself.
"The image “http://upload.wikimedia.org/wikipedia/commons/a/a9/Van_istendael675.jpg
” cannot be displayed, because it contains errors."
Google Chrome displays the file and preview properly.
http://commons.wikimedia.org/wiki/File:Van_istendael675.jpg
Walter Siegmund