Slideshow, images, size…the mistery

Good night you all dear friends!!! I’m using the «Oxygen» Theme from WP in a local host, and also online in my website. In the local host I did some changes as re-sized the slideshow (940px) and everything went great, but when I try to do it in my website on line the Slideshow go widther but not the images…I´ve tryed all, re-name it, re-loaded it, re-installed the theme…but the images stay 750X350px…well…I´m going crazy.

HEEEEEEEELLLLLLPPPPPPPP!!!!!

http://www.verbo10.com