How to remove border?

I guess I find out:
In bmo-expo/css/themes/default.css look at max-height and max-width. By default it was 95% (what a stupid idea). So it should be:

div.bmo_the_gallery div.bmo_the_gallery_image img, div.bmo_the_gallery div.bmo_the_gallery_image a img{
	background: url("../imgs/ajax-loader.gif") no-repeat scroll center center transparent;
	/*styles to center images*/
	vertical-align:middle;
	display:inline;
	max-height:100%; /*dont use padding or margins here, use the % width and hight to reduce the size of the inner images*/
	max-width:100%;