Toolbar Lockup?

I have a toolbar with a drop down menu on a regular form. I you select the menu but do not select one of the menu items (say you click somewhere else on the form), the whole app locks up. The toolbar is top aligned and the form has a fixed dialog box border (if that helps any). The only way to get out of the lock up is to CTL-BRK or click the form in the Windows taskbar. There are no other events outside the Select Case Button.Index

Does anyone know why this is happening? If so what is a workaround?

Is the dropdown menu part of the toolbar control, or are you using the PopupMenu?

Not that I have a solution, but that has never happened to my when I do it, and I use the dropdown menus included in the toolbar control. Perhaps that may be a solution, although I don't see why It would.