Topic: Simpleviewer sometimes doesn´t load in my page

I have used various galleries in a site and they function all right but sometimes they don´t load at all and you hace to reload the page through F5 or right click in the background were the swf is and press Play.
This happens in IE 6 or 7... I don´t know how to solve it...

You can see it in matiasmfotografia . com . ar

I will truly appreciate a solution for this...