Sound is lost in AIR app

Question

I've build an AIR app that shows and plays flash animations
(swf) and flash video (flv) files.
The app has 5 pages, the first has a TileList of swfs, and
when one is selected, it switches to another state that holds a
Image component that will play the chosen swf.
The other four pages have a TileList of flv files, and when
one is selected, it switches to another state that holds a
VideoDisplay component that will play the chosen flv.
You can switch from one page to the other with a
TabNavigator.
It all works fine, but after switching from one page to the
other, from one flv to the other, suddenly the chosen flv is played
without sound. And then the sound for the entire application is
gone: even when you try to view an swf you've previously played
with sound, the sound is gone!
I've traced the volume settings and they stay the same
whether the sound is audible or not.
Any ideas on how to solve this problem or find out what makes
the sound crash?

Answer 1

Adobe Newsbot hopes that the following resources helps you.
NewsBot is experimental and any feedback (reply to this post) on
its utility will be appreciated:
T (Flex 3):
The skin for all the states of a Tab in a TabNavigator or
TabBar. ...... Values for the direction property of the TileList
component.
Link:
http://livedocs.adobe.com/flex/3/langref/all-index-T.html
Peter deHaan: This Week in FlexExamples Archives:
Blah, blah, blah, list of posts from the past week from my
Flex examples blog, .... Creating a simple image gallery with the
Flex TileList control
Link:
http://blogs.adobe.com/pdehaan/flex/this_week_in_flexexamples/
All Classes (Flex 3):
flash.filters, The BitmapFilter class is the base class for
all image ...... listClasses, Values for the direction property of
the TileList component.
Link:
http://livedocs.adobe.com/flex/3/langref/class-summary.html
Peter deHaan: Flex Archives:
In earlier Flex 3 betas, the FCK was included with the Flex
SDK (see, 'Installing the Flex Component Kit for Flash CS3' for
more details on installing the
Link:
http://blogs.adobe.com/pdehaan/flex/
T Index (Flex 2.0.1 Language Reference):
The TabNavigator container extends the ViewStack container by
including a TabBar ..... Values for the direction property of the
TileList component.
Link:
http://livedocs.adobe.com/flex/201/langref/all-index-T.html
Peter deHaan: October 2007 Archives:
Oct 1, 2007 ... Rebuilt entirely in Flex (Formerly was Flash
MX), ... to link up the scroll bar with the image list control on
the stage. various 'oohs' and
Link:
http://blogs.adobe.com/pdehaan/2007/10/
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