--- a/presentations/least-square.tex	Fri Apr 16 16:16:13 2010 +0530
+++ b/presentations/least-square.tex	Sat Apr 17 12:50:42 2010 +0530
@@ -150,7 +150,9 @@
 
 \begin{frame}[fragile]
   \frametitle{Summary}
+  \begin{block}{}
     Obtaining the least fit curve from a data set
+  \end{block}    
 \end{frame}
 
 \begin{frame}