I've just filed the bug. Thanks a lot for your hint and your time!

The problem is that the dropdown does not show THE SELECTED image item. If the dropdownlist items are made up of text + image icon, only the text is displayed, but not the image icon to the left of the text. If there is no text, it shows nothing. (It worked wonderfully in AFX CS4).

A dropdownlist that displayed images in my AFX CS4 interface does not display the selected item when I run it in AFX CS5 (it shows text only, it there's any). When you click on the dropdownlist control it displays all the image items assigned to it, but as you select one of them the control does not...