switch remaining icon references to the PNG icons
diff --git a/Doc/html/about.html b/Doc/html/about.html
index c557dff..3b15a65 100644
--- a/Doc/html/about.html
+++ b/Doc/html/about.html
@@ -9,7 +9,7 @@
     <link rel="index" href="modindex.html" title="Global Module Index">
     <link rel="start" href="index.html" title="Python Documentation Index">
     <link rel="up" href="index.html" title="Python Documentation Index">
-    <link rel="SHORTCUT ICON" href="icons/pyfav.gif" type="image/gif">
+    <link rel="SHORTCUT ICON" href="icons/pyfav.png" type="image/png">
     <link rel="STYLESHEET" href="lib/lib.css">
   </head>
   <body>
@@ -17,20 +17,20 @@
       <table width="100%" cellpadding="0" cellspacing="2">
           <tr>
             <td><img width="32" height="32" align="bottom" border="0" alt=""
-                src="icons/blank.gif"></td>
+                src="icons/blank.png"></td>
             <td><a href="index.html"
                 title="Python Documentation Index"><img width="32" height="32"
                   align="bottom" border="0" alt="up"
-                  src="icons/up.gif"></a></td>
+                  src="icons/up.png"></a></td>
             <td><img width="32" height="32" align="bottom" border="0" alt=""
-                src="icons/blank.gif"></td>
+                src="icons/blank.png"></td>
             <td align="center" width="100%">About the Python Documentation</td>
             <td><img width="32" height="32" align="bottom" border="0" alt=""
-                src="icons/blank.gif"></td>
+                src="icons/blank.png"></td>
             <td><img width="32" height="32" align="bottom" border="0" alt=""
-                src="icons/blank.gif"></td>
+                src="icons/blank.png"></td>
             <td><img width="32" height="32" align="bottom" border="0" alt=""
-                src="icons/blank.gif"></td>
+                src="icons/blank.png"></td>
           </tr>
       </table>
       <b class="navlabel">Up:</b>