help! i get weird symbols -> 

<font size="5"> <span style="font-weight: bold;">The Clips!</span> </font> <br /><br /> [!SimpleVideoShow? &video=`test.wmv` &enableJavaScript=`true`!]

$snipPath = $modx->config['base_path'] . "assets/snippets/simplevideoshow/";
if (file_exists($snipPath."simplevideoshow.inc.php")){
	include_once($snipPath."simplevideoshow.inc.php");
}
else $output="<strong>Bad install</strong> : file '$snipPath.simplevideoshow.class.php' does not exist. Can you check your install, please";
return $output;

global $modx;

  // ---------------------------------------------------
  // Get Language
  // ---------------------------------------------------

$language = (isset($language))? $language : "english";

  // ---------------------------------------------------
  // Include files
  // ---------------------------------------------------

$files['language'] = $snipPath."lang/$language.inc.php";
$files['functions'] = $snipPath."simplevideoshow.class.php";

foreach ($files as $filename => $filevalue) {
	if (file_exists($filevalue) && $filename != "language") {
		include_once($filevalue);
	} else if(file_exists($filevalue) &&  $filename == "language") {
		include($filevalue);
		$GLOBALS['_lang'] = $_lang;
	} else if($filename == "language") {
		$output="Language file does not exist Please check: ".$filevalue;
		return $output;
	} else {
		$output=$_lang['error'].__LINE__.") ".$filevalue." ".$_lang['file_does_not_exist'];
		return $output;
	}
}

  // ---------------------------------------------------
  // Parameters
  // ---------------------------------------------------

$video = isset($video) ? $video: $_lang['error'].__LINE__.") ".$_lang['no_video'];
$videoPath =  isset($videoPath) ? $videoPath : "assets/media/";
if (!file_exists( $modx->config['base_path'] . $videoPath.$video)){
		$output=$_lang['error'].__LINE__.") ". $modx->config['base_path'] . $videoPath.$video." ".$_lang['file_does_not_exist']."<br />";
		return $output;	
}
$_video['video']=$modx->config['site_url'].$videoPath.$video;
$_video['width'] = isset($width) ? $width: "400";
$_video['height'] = isset($height) ? $height: "340";
$_video['standby'] = isset($standby) ? $standby: $_lang['standby'];

$_parameter['showcontrols'] = isset($showcontrols) ? $showcontrols: "true";
$_parameter['autostart'] = isset($autostart) ? $autostart: "true";
$_parameter['controller'] = isset($controller) ? $controller: "true";
$_parameter['showstatusbar'] = isset($showstatusbar) ? $showstatusbar: "default";
$_parameter['volume'] = isset($volume) ? $volume: "75%";
$_parameter['animationatstart'] = isset($animationatstart) ? $animationatstart: "default";
$_parameter['transparentatstart'] = isset($transparentatstart) ? $transparentatstart: "true"; //modifié
$_parameter['qtsrcdontusebrowser'] = isset($qtsrcdontusebrowser) ? $qtsrcdontusebrowser: "default";
$_parameter['enablejavascript'] = isset($enablejavascript) ? $enablejavascript: "default";
$_parameter['clicktoplay'] = isset($enablejavascript) ? $enablejavascript: "default";
$_parameter['stretchToFit'] = isset($stretchToFit) ? $stretchToFit: "default";
$_parameter['AutoSize'] = isset($stretchToFit) ? $stretchToFit: "true";


  // ---------------------------------------------------
  // Begin the traitement
  // --------------------------------------------------

$simplevideoshow = null;

if (class_exists('simplevideoshow')) {
   $simplevideoshow = new simplevideoshow($_video, $_parameter);
} else {
	$output=$_lang['error'].__LINE__.") ".$filevalue." ".$_lang['invalid_class'];
	return $output;
}

// Output
$output .= $simplevideoshow->render();

$medhd="<table width='100%' cellspacing='0' cellpadding='0' border='1'>
	<tr><td align='center'>";

$medft="</td></tr>
	<tr><td width='100%'>
		blablabla<br />
		this is a test video<br />
	</td></tr></table><br /><br />";

$output = $medhd.$output.$medft;

  // ---------------------------------------------------
  // Output results
  // ---------------------------------------------------

return $output;

(...) <div id="block_1" class="subcontent"> <!-- main center column -->
<font size="5"> <span style="font-weight: bold;">The Clips!</span> </font> <br /><br /> <table width='100%' cellspacing='0' cellpadding='0' border='1'>
	<tr><td align='center'>
			<!-- Internet Explorer Users -->
			<object id="player_IE" 
		classid="CLSID:6BF52A52-394A-11d3-B153-00C04F79FAA6"
						codebase="http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=6,4,5,715"
						type="application/x-oleobject" 
						
				width="400" height="340"
				standby="In process..."
				>
				<param name="url" value="http://chaoticclips.com/assets/media/test.wmv" />

				<param name="src" value="http://chaoticclips.com/assets/media/test.wmv" />
		<param name="showcontrols" value="true" /><param name="autostart" value="true" /><param name="controller" value="true" /><param name="volume" value="75%" /><param name="transparentatstart" value="true" /><param name="AutoSize" value="true" />
				<!-- Non-Internet Explorer Users -->
				<!--[if !IE]>-->
				<object id="player_NIE"
		type="video/x-ms-wmv"data="http://chaoticclips.com/assets/media/test.wmv" 
					width="400" height="340">
					<param name="src" value="http://chaoticclips.com/assets/media/test.wmv" /><param name="showcontrols" value="true" /><param name="autostart" value="true" /><param name="controller" value="true" /><param name="volume" value="75%" /><param name="transparentatstart" value="true" /><param name="AutoSize" value="true" />
					</object>
				<!--<![endif]-->
			</object>		
		</td></tr>

	<tr><td width='100%'>
		blablabla<br />
		this is a test video<br />
	</td></tr></table><br /><br />
</div> <!-- end block 1 --> (...)