Ok, searched the newsgroup for this one but only found more of the same question, no answers. So here it is: I've created a custom toolbar on my custom mns. I then place a blank 'user defined flyout button' on a toolbar, then click on the blank flyout, it then asks me to associate it with a toolbar so I choose the custom toolbar I just created. The flyout works fine! But then when I close and restart ADT the flyout dissapears?! The custom toolbar (the one I associate to the flyout) remains in the mns. What's the deal? Thanks.