Revolution Slider Size Problem

Hello,

I’m using the same settings and sizes for my rev slider as your demo web site rev slider on my home page but Images that I use as a background doesn’t fit to slider. İmage sizes and Layers Grid Sizes are the same but images still doesn’t fit to the slider window.

For example: Layer grid size is 1140×450 on slider settings and I’m using exactly the same size for my background image but it looks much bigger on web site.

On this page: http://canadaviet.com/ Corporate Slider

Any advice??