[XeTeX] moreverb in beamer

[Michael Iatrou]

Hi,

I am using ``moreverb'' package with beamer in order to get visible tabs on 
verbatim environment. Specifically I am usign the following code:

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\documentclass[14pt]{beamer}
\usepackage{fontspec}
\usepackage{xunicode}
\usepackage{xltxtra}
\usepackage{moreverb}

\begin{document}

\begin{frame}[fragile]{tab}

\begin{verbatimtab}[4]
indentation
	doesn't
		work
\end{verbatimtab}

\end{frame}

\end{document}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

(one tab before ``doesn't'', two before ``work'')

But it seems like verbatimtab is ignored and simple verbatim environment is 
used for the output instead (no indentation).

I don't get any error messages in the log file and the only relative entries 
are:

(/usr/share/texmf-texlive/tex/latex/moreverb/moreverb.sty
Package: moreverb 1997/12/07 v2.2d.2 `more' verbatim facilities

(/usr/share/texmf-texlive/tex/latex/tools/verbatim.sty
Package: verbatim 2003/08/22 v1.5q LaTeX2e package for verbatim enhancements

$ xelatex -v
XeTeX 3.141592-2.2-0.996-patch2 (Web2C 7.5.6)
kpathsea version 3.5.6
Copyright 2007 SIL International.
Kpathsea is copyright 2007 Karl Berry and Olaf Weber.
There is NO warranty.  Redistribution of this software is
covered by the terms of both the XeTeX copyright and
the Lesser GNU General Public License.
For more information about these matters, see the file
named COPYING and the XeTeX source.
Primary author of XeTeX: Jonathan Kew.
Kpathsea written by Karl Berry, Olaf Weber, and others.

Compiled with ICU version 3.4 [with modifications for XeTeX]
Compiled with zlib version 1.2.3.3; using 1.2.3.3
Compiled with FreeType2 version 2.3.7; using 2.3.7
Compiled with fontconfig version 2.6.0; using 2.6.0
Compiled with libpng version 1.2.27; using 1.2.27
Compiled with libpoppler version 3.00

Any ideas on what I am missing and how I can get the desired result without 
manually replacing tabs with spaces?

Thanks,

-- 
 Michael Iatrou (irqc)