QTextBrowser don't load images images only under win Vista

[bred]

In my code I'm generating dynamically an HTML that referrers to a collection of images stored in the HD.

I set the the HTML with the function my_page.setHtml( my_html )

As a result my code works correctly under Linux and windows 7
but under Windows Vista don't load the images.

In the html I'm writing the full path of the images using the slash as a directory separator.

That's a portion of the HTML source generated by my code:

<table cellpadding="3" cellspacing="0" border="0" align="left" width="185">	
<tr bgcolor="#000000"></tr>	
<tr>	
<td align="center" bgcolor="#090064"> <font size="12" color="#FFFFA7"> Photo 200</font> </td> 	
  </tr>	
<tr>	
   <td  align="center" bgcolor="#090064">
<a href="#photo_200">
<img src="C:/Program Files/Images/200.jpg" width="136" height="178" alt="" />
</a>
</td>	
</tr>	
</table>

<table cellpadding="3" cellspacing="0" border="0" align="left" width="185">	
<tr bgcolor="#000000"></tr>	
<tr>	
<td align="center" bgcolor="#090064"> <font size="12" color="#FFFFA7"> Photo 200</font> </td> 	
  </tr>	
<tr>	
   <td  align="center" bgcolor="#090064">
<a href="#photo_200">
<img src="C:/Program Files/Images/200.jpg" width="136" height="178" alt="" />
</a>
</td>	
</tr>	
</table>

To copy to clipboard, switch view to plain text mode 

Do you have some idea?