hi,
I have discovered a bug in the creation of Thumbnails in dyn. Albums that only
contain video. the function getAlbumThumbImage() in class-album.php does not
check for the existence of video-thumbs..
i.e. the files with identical name sitting next to the flv file

well once again I would like to offer something back to this great piece of software !

adding this to line 713 in class-album.php will fix the issue:

if (is_valid_image(substr($thumb['filename'],0,-4).".jpg")) {
$alb = new Album($this->gallery, $thumb['folder']);
$thumb = newImage($alb, substr($thumb['filename'],0,-4).".jpg");
if ($thumb->getShow()) {
$this->albumthumbnail = $thumb;
return $thumb;
}
}

I suggest that this or some more glamorous solution goes into the next release

Thanks for the alert. The final solution will have to be "more glamorous" as at least there are other formats than JPEG that could be thumbnail standins.