Bug 77535 Control example coolbar tab uses images in drop down
In the coolbar tab of the ControlExample, enable Item styles "SWT.DROP_DOWN". Now make the coolbar 100x100 so that a chevron is required to see some of the items. On WindowsNT, menus do not support images. When you select the menu from the chevron of the coolbar, it is blank because there are only images in the menu items.
examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/controlexample/CoolBarTab.java
* Add a menu selection listener so that the menu is hidden
						 * when the user selects an item from the drop down menu.
						 */
						menuItem.addSelectionListener(new SelectionAdapter() {
							public void widgetSelected(SelectionEvent e) {
								setMenuVisible(false);
							}
						});
					} else {
						new MenuItem(menu, SWT.SEPARATOR);
					}
				}
			}
			
			/**
			 * A selection event will be fired when a drop down tool
			 * item is selected in the main area and in the drop
			 * down arrow.  Examine the event detail to determine
			 * where the widget was selected.
			 */		
			if (event.detail == SWT.ARROW) {
				/*
				 * The drop down arrow was selected.
				 */
				if (visible) {
					
					setMenuVisible(false);
				} else {	
					
					final ToolItem toolItem = (ToolItem) event.widget;