diff --git a/content/demo/10_center b/content/demo/10_center
index 45ccfbf..9a5b940 100644
--- a/content/demo/10_center
+++ b/content/demo/10_center
@@ -3,6 +3,8 @@
 	<p>With the new release, we proudly present an online demonstration
 	of the webinterface of a CryptoBox. At the moment the server is quite
 	slow, but at least you will get a feeling of how the CryptoBox works.</p>
+	<p>Note that some irregularities may occur, as we also use this for
+	review. If you notice strange behaviour don't hesitate to inform us, as we are sometimes blind for the obvious.</p>
 	<p>Try: <a href="http://demo.cryptobox.org">http://demo.cryptobox.org</a>.</p>
 	<p>The necessary access credentials for restricted parts of the demo are:</p>
 	<ul>