-\documentclass[empty]{caes_presentation}
+\RequirePackage{atbegshi}
+\documentclass[empty]{beamer}
+\usetheme{default}
+\setbeameroption{show notes}
+\setbeamertemplate{navigation symbols}{}
+\setbeamertemplate{footline}
+{
+ \hbox{%
+ \centerline{\insertframenumber{}}}%
+ \vskip5pt%
+}
%include talk.fmt
\include{preamble}