submit doesn't appear as button

Got a newbie question.  I have a simple xform with two input fields and a single submit button.  The input fields show up correctly, but the submit does not show up as a button.  The submit label appears but there is not button.  I have tried example xforms from the web and they all have the symptom..  Not sure what is wrong.

My xform looks like...

<?xml version="1.0" encoding="UTF-8"?>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:ev="http://www.w3.org/2001/xml-events" xmlns:xforms="http://www.w3.org/2002/xforms/cr">
<xforms>
<head>
<model>
  <instance>
  <Template>
            <Letter>
                        <Advisor_EmployeeID></Advisor_EmployeeID>
                        <Client_ID></Client_ID>
            </Letter>
</Template>
  </instance>
  <submission id="form1" method="form-data-post" action="http://localhost:8080/dls/forms/letter" ref="/Template"/>
</model>
</head>
<body>
<input ref="Client_ID">
<label>Client ID</label>
</input>
<br/>

<input ref="Advisor_EmployeeID">
<label>Advisor Employe ID</label>
</input>
<br/>
<br/>

<submit submission="form1">
<label>Submit</label>
</submit>
<body>
</xforms>
</html>

Received on Thursday, 12 June 2008 14:35:37 UTC