Problem with SWF yowindow in client

I have a problem

When I insert an HTML embedded from yowindow.com site, it does not respect the time set in the layout and then freezes.

I copied the code from http://yowindow.com/weatherwidget.php?locale=pt

It loads a SWF file. The code is below:

<div style="width:1280px; height:720px;">
    <object type="application/x-shockwave-flash" data="http://swf.yowindow.com/yowidget3.swf" width="1280" height="720">
     <param name="movie" value="http://swf.yowindow.com/yowidget3.swf"/>
     <param name="wmode" value="opaque"/>
     <param name="bgcolor" value="#FFFFFF"/>
     <param name="flashvars"
     value="location_id=gn:3448439&location_name=S%C3%A3o%20Paulo&landscape=airport&time_format=24&unit_system=metric&lang=pt&background=#FFFFFF©right_bar=false"
    />
        <a href="http://WeatherScreenSaver.com?client=widget&link=copyright"
        style="width:1280px;height:720px;display: block;text-indent: -72000px;font-size: 0px;background:#DDF url(http://yowindow.com/img/logo.png) no-repeat scroll 50% 50%;"
        >Widget do Tempo</a>
    </object>
</div>
<div style="width: 1280px; height: 15px; font-size: 14px; font-family: Arial,Helvetica,sans-serif;">
 <span style="float:left;"><a target="_top" href="http://WeatherScreenSaver.com?client=widget&link=copyright" style="color: #2fa900; font-weight:bold; text-decoration:none;" title="Widget do Tempo">YoWindow.com</a></span>
 <span style="float:right; color:#888888;">Forecast by <a href="http://yr.no" style="color: #2fa900; text-decoration:none;">yr.no</a></span>
</div>

My question is:
This freeze is caused due to the SWF that loads or embedded HTML problem Xibo client?

My client and server is 1.4.2 stable
Client is running Windows XP SP3 and server is Debian 7.

I have no knowledge of Flash and Javascript.

Sorry for my English.

Marco