Very strange. Can you repeat this behaviour in a small sample (1 menu, 1 form, 1 toolbar)? If so, I could take a look at it?

>Has anyone noticed a problem with system menu bar activation? I suspect it's due to Visual Studio's SP3, but I haven't absolutely confirmed that yet. Anyway, I have these system menu bars defined within one of our menu popups, as well as, corresponding toolbar buttons. They seem to work fine if a form is instantiated from the toolbar (toolbar button click event calls DoForm). But, if I instantiate a form from the menu, both the system menu bars and their corresponding toolbar buttons stay deactivated until I quit the application.