Content of the popup view is not rendered

I'm facing the following issue with SWF and Rich Faces. The view state which is configured to be displayed in a popup window doesn't display its content. This happens randomly.

When the view content doesn't show up there is only a small fragment of the window which is rendered (this window remains empty except for the closing 'x'-button and the window is about 50x50 px in size - see popup_not_rendered.png. However if I enter this view again it's displayed correctly - see popup_rendered.png.

I haven't noticed any exceptions in the application log files etc.

The similar issue has been described in the following thread: http://forum.springsource.org/showthread.php?t=84946