The following css is superseded by a class that removes the menu-expanded.png and the indents in certain contexts. I could show you an example if you need it. But the consequence is that menus do not show indents and collapsed and expanded CSS in some contexts. If I switch to Bartik theme, the menus display as expected. I'm in D7 and using the most recent (non dev) version of Jackson.

Any chance this could be looked at? 

ul li.expanded {
    list-style-image: url("../../misc/menu-expanded.png");
    list-style-type: circle;
}