[Plugin: Easy Gallery Slider] slideshow moving

Could you give a link to the page? What do you mean “jumping”?

Your theme has 2 conflicting CSS rules:

.art-post ul li, .art-post ol ul li { padding-left: 14px; }
.art-post li { padding: 0 0 0 14px; }

Add the following line to your CSS or to easygalleryslider.css directly:

.easygalleryslider .slides > li { padding: 0; }

That will fix the jumping. Also, in the next update I’ll include a CSS reset for this.

Thanks!