IE, cahce and Event.COMPLETE

There's a problem with Interenet Explorer (6 or 7) and FlashPlayer 9. It seems that the loaderInfo doesn't dispath Event.COMPLETE when the movie is opened from browser cache on IE. Work fine with FF and Opera. What is more it works fine on latest Flash Player (9.0.124) but the problem exits on older (9.0.24 or something).