Alt text how to revise the picture name in displayimage? thanks
Edit lang/yourlanguage.php, e.g. lang/english.php or chinese_big5.php, find 'view_fs' =>and edit the stuff in single quotes on the right side of that array definition - for English, that line reads 'view_fs' => 'Click to view full size image',, for the chinese language file it's 'view_fs' => '點選圖片以觀看原圖',
Has been asked only a couple of days ago in http://forum.coppermine-gallery.net/index.php/topic,59372.0.html
Is not related to permissions - moving accordingly.