How do I fix baseline alignment of bullet-items in beamerposter?

Question

In beamerposter, 2008/03/11. v.1.07. (the version in Tex Live 2011), itemize bullets are misaligned:

\documentclass[final]{beamer}
\usepackage[english]{babel}
\usepackage[orientation=portrait,size=a4,scale=1.0,debug]{beamerposter}  % e.g. custom size poster
\begin{document}
 \begin{frame}{} 
  \begin{block}{\Large{Summary}}
   \begin{itemize}
    \item Item 1
    \item Item 2
    \item Item 3
   \end{itemize}
  \end{block}
 \end{frame}
\end{document}

• How can I fix the vertical alignment?

Answer 1

This is a bug in older versions of beamerposter. With newer versions, at least v1.12, available not in Tex Live 2011 but at http://www-i6.informatik.rwth-aachen.de/~dreuw/latexbeamerposter.php, this bug is fixed:

If you don't use the newest version, or you still want to tweak the vertical alignment, try something like this in your preamble:

\setbeamertemplate{itemize item}{\raisebox{0.1ex}{$\blacktriangleright$}\hskip0.1em}

Replace \blacktriangleright by the symbol you want to use for your itemize (see the LaTeX comprehensive symbol list for a complete list.

However, I don't know how to fix it when using more complicated bullets such as ball (that I think is drawn with tikz).