             // The dropdown menu is about to appear anyway,
             // and other processing can make the tween look choppy.
             _dropdown.setStyle("selectionDuration", 0);
-
-            if (FlexVersion.compatibilityVersion < FlexVersion.VERSION_3_0 && dropdownBorderStyle && dropdownBorderStyle != "")
-                _dropdown.setStyle("borderStyle", dropdownBorderStyle);
 
             // Set up a data provider in case one doesn't yet exist,
             // so we can share it with the dropdown listbox.

            if (itemRenderer)
                _dropdown.itemRenderer = itemRenderer;

            if (FlexVersion.compatibilityVersion < FlexVersion.VERSION_3_0)
            {
                _dropdown.styleName = this;
            }

            if (dropDownStyleName)
            {
                if (FlexVersion.compatibilityVersion < FlexVersion.VERSION_3_0)
                {
                    var styleDecl:CSSStyleDeclaration =
                        StyleManager.getStyleDeclaration("." + dropDownStyleName);
    
                    if (styleDecl)
                        _dropdown.styleDeclaration = styleDecl;
                }
                else
                {
                    _dropdown.styleName = dropDownStyleName;
                }
            }
            else if (FlexVersion.compatibilityVersion < FlexVersion.VERSION_3_0)
            {
                _dropdown.setStyle("cornerRadius", 0);
            }

            PopUpManager.addPopUp(_dropdown, this);


        var bm:EdgeMetrics = borderMetrics;
        measuredMinHeight = measuredHeight =
            Math.max(textHeight + bm.top + bm.bottom, DEFAULT_MEASURED_MIN_HEIGHT);
        measuredMinHeight = measuredHeight += getStyle("paddingTop") + getStyle("paddingBottom");
    }

    /**
