diff --git a/checked_delete.html b/checked_delete.html
index 4af2ae7..20ffef0 100644
--- a/checked_delete.html
+++ b/checked_delete.html
@@ -8,7 +8,7 @@
 		<table border="0" width="100%">
 			<tr>
 				<td width="277">
-					<img src="../../c++boost.gif" alt="c++boost.gif (8819 bytes)" width="277" height="86">
+					<img src="../../boost.png" alt="boost.png (6897 bytes)" width="277" height="86">
 				</td>
 				<td align="middle">
 					<h1>checked_delete.hpp</h1>
diff --git a/enable_if.html b/enable_if.html
index 085fcd9..7a00225 100644
--- a/enable_if.html
+++ b/enable_if.html
@@ -17,7 +17,7 @@
 
 
 <h1>
-<img border="0" src="../../c++boost.gif" align="center" width="277" height="86">enable_if</h1>
+<img border="0" src="../../boost.png" align="center" width="277" height="86">enable_if</h1>
 <BR>
 <BR>
 Copyright 2003 Jaakko J&auml;rvi, Jeremiah Willcock, Andrew Lumsdaine.<BR>