Not horizont gallery, only vertical

Hello there,

I’ve this problem a lot of time, in few words: Why I can’t show my gallery with horizont thumbnails but show me only in vertical thumbnails??? If I change setting nothing happen…look my screen for understand what I mean!

I wanna show my gallery like this: (horizontal thumbnails, each other: https://it.tinypic.com/view.php?pic=1zn5tm8&s=8

But show only in vertical mode, like this: https://it.tinypic.com/view.php?pic=qq6845&s=8 all my picture are damn in vertical, only confusion appear…

But setting is ok: https://i57.tinypic.com/72efl4.jpg

Please help, thx

https://www.ads-software.com/plugins/nextgen-gallery/