--- a/doc/scmulti.html
+++ b/doc/scmulti.html
@@ -800,6 +800,12 @@
     resynchronize everything, stop or pause the playing on the PC (from the
     player, e.g. Media Player, not from the Songcast utility), wait for the
     audio to drain, and a few seconds more, then restart playing.
+</p>
+</li>
+<li>
+<p>
+Receivers slowly drift out of sync, especially if they use different
+    hardware. I intend to work on this, but it&#8217;s a difficult issue.
 </p>
 </li>
 <li>
@@ -938,7 +944,7 @@
 <div id="footnotes"><hr /></div>
 <div id="footer">
 <div id="footer-text">
-Last updated 2015-04-29 14:41:49 CEST
+Last updated 2015-04-29 14:50:56 CEST
 </div>
 </div>
 </body>