Tab navigator and swf loader issue

Question

I have written two flex applications. Each of the
applications contains a tab navigator control. The direct children
of this tab navigator are canvases, sized to max.
i.e.
<mx:Canvas label="WhateverLabel" width="100%"
height="100%">
<!--whatever additional children here-->
</mx:Canvas>
Everything works fine, the navigator, all its children and
grandchildren Application does exaclty as it should ... untill I
load it into another application using swf loader.
Our main application is a menu driven app that loads
individual swf files based on user selection. When either one of
these programs (using the tab navigator described above) is loaded,
I get a White Bar across the top of the screen, sized as the Tab
navigator width.
the white bar goes away as soon as the user interacts with
any control, but it still is there on application load. Here is a
picture of what I am speaking about.
http://members.cox.net/dragon.magik/whitebar.jpg
You can see the menu atop the screen as the base application.
You can then see the panel right beneath it, that is the main panel
of the application i am having problems with. The white bar, as you
see, is as wide as my tab navigator. The TN labels are positioned
correctly, but I don't know why I am getting the white bar. I am
having the exact same problem with tab navigators in two different
applications I load into this one control panel. Any help would be
greatly appreciated. Thanks in advance.

Answer 1

There is an unsolved bug in adobe.
You have to solve it manually overriding the function:
package
     import mx.containers.TabNavigator;
     public class TabNavigatorFixed extends TabNavigator
         public function TabNavigatorFixed()
             super();
         override protected function  commitSelectedIndex(newIndex:int):void
             super.commitSelectedIndex(newIndex);
             if(tabBar.numChildren > 0){
                 // Select the corresponding Tab in the Tab Bar (this  fixes a bug in Flex)
                 tabBar.selectedIndex = newIndex;