Toolbar Property Pages glitch

Not really a problem here (because things are working), but an observation. I have two toolbars in my app, each tied to the same two image lists (one for "regular" images, the other for disabled images). In the property pages, when I specify the regular image list name, it resets the name back to the selection for the disabled image list - although it pulls the images from the proper list at design time. At run-time it works fine. When I look at the .frm file in Notepad, the properties are set correctly. Seems that there is a bug in the property pages where the image list drop-down selection shows the wrong image list. Has anyone else experienced this?