misc updates
diff --git a/docs/pbuffers.html b/docs/pbuffers.html
index 74af478..68a5e3e 100644
--- a/docs/pbuffers.html
+++ b/docs/pbuffers.html
@@ -10,6 +10,7 @@
 Basically, FBconfigs and PBuffers allow you to do off-screen rendering
 with OpenGL.  The OSMesa interface does basically the same thing, but
 fbconfigs and pbuffers are supported by more vendors.
+PBuffer rendering may also be hardware accelerated.
 </p>
 
 <p>