Code:
/*change  bullet when a category w/o bg image is open to subs:*/

#chcategories li a.cat-parent-text {

    list-style: square inside url(../images/bullet2.gif);/*change to list-style: none; to remove bullet*/

	position: relative; left: -17px;

	font-size: 13px;

	font-weight: bold;

    }
a.cat-parent-text
applies to the top cats as well as to this one subcat that has subs; you can delete the font-weight here, as it is also covered under
#chcategories ul a {/*top categories*/