mathml with netscape 7.1 and Mozilla Firefox 1.5.0.6

hello,

sorry, but my english is not so well. I write from nuremberg, germany.

My problem, and I hope you can help me, is:
I want to create a website with mathematical content by using mathml.
I have no problems with IE/mathplayer. IE/mathplayer displays the notation  
correctly.
I have problems with netscape and firefox. Every site in the web which use  
mathml is correctly displayed, but not my website.
Is the problem the serverconfiguration?

My code:
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="pmathml.xsl"?>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
   <meta http-equiv="Content-Type" content="text/html" />
   <title>Test</title>
</head>

<body>

<math display='block' xmlns='http://www.w3.org/1998/Math/MathML'>

   <mrow>
    <mfrac>
     <mn>1</mn>
     <mn>2</mn>
    </mfrac>
    <msup>
     <mi>x</mi>
     <mn>2</mn>
    </msup>
    <mo>&#x2212;</mo><mn>4</mn><mi>x</mi>
   </mrow>

</math>

</body>
</html>

thank you
Wolfgang, Nuremberg (Germany)

Received on Monday, 28 August 2006 14:55:14 UTC