I am making a beamer presentation with XeTeX, in which I am using Ilmenau theme. This theme has by default smoothbars as an outer theme. My problem that in a section's subsection, there are a lot of frames, which makes too many bullets in the header. How Can I remove/wrap those bullets from header to make the presentation look a bit more pretty.
\documentclass[slidestop,compress,10pt,xcolor=dvipsnames]{beamer}
\newcommand*\oldmacro{}%
\let\oldmacro\insertshorttitle%
\renewcommand*\insertshorttitle{%
\oldmacro\hfill%
\insertframenumber\,/\,\inserttotalframenumber}
\setbeamertemplate{footline}[frame number]
\setbeamertemplate{blocks}[rounded][shadow=true]
\setbeamertemplate{navigation symbols}{}
%\usepackage[cm-default]{fontspec}
%\setromanfont{GFS Neohellenic}
\mode<presentation>
\AtBeginSection[]
{
\begin{frame}<beamer>
\frametitle{Outline}
\footnotesize{\tableofcontents[currentsection]}
\end{frame}
}
\usetheme{Ilmenau}
%\useoutertheme[subsection=false]{smoothbars}%Beamer Outer Theme-circles on top
\begin{document}
\section{Results}
\subsection{First Subsection}
\frame{Frame 0}
\subsection{Long Subsection}
\frame{Frame 1}
\frame{Frame 2}
\frame{Frame 3}
\frame{Frame 4}
\frame{Frame 5}
\frame{Frame 6}
\subsection{Third Subsection}
\frame{Frame 7}
\end{document}
My ugly output is

