[OS X TeX] XeTeX - Beamer package font kerning problem

[Horst Hohberger]

After recently discovering XeTeX after trying and failing to get the
Chinese language pack CJK to work (ugh!), I have started to use it for
all my TeX files. However,  I have encountered some difficulties with
getting it to work with the beamer package (mostly resulting from the
fact that xetex is not compatible with pgf). The webpage at

http://www.cnblogs.com/agateriver/archive/2007/04/01/696153.html

proved to be invaluable, giving many hints on the correct settings
(without the dvipdfm option, xetex seems to crash). I have also
obtained open-type versions of the computer modern fonts CMU Serif,
etc. There is one remaining sticking point: the character spacing does
not seem to work properly, with parentheses running into letters in
mathematical formulae. The problem disappears if I specify a font
different from CMU which only has an upright version. Thus I surmise
that the problem occurs because no allowance is made for the slanting
of italics. Did I miss a setting in calling the xetex packages? For
reference, i have attached two example files (source+pdf) to this
post; if anyone could help me, I would be most grateful! I have spent
a few days searching archives and googling, but to no avail.

Horst
-------------- next part --------------
A non-text attachment was scrubbed...
Name: beamer_latex.pdf
Type: application/pdf
Size: 49590 bytes
Desc: not available
Url : http://tug.org/pipermail/macostex-archives/attachments/20080202/b7950f27/attachment-0002.pdf 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: beamer_latex.tex
Type: application/x-tex
Size: 1055 bytes
Desc: not available
Url : http://tug.org/pipermail/macostex-archives/attachments/20080202/b7950f27/attachment-0002.tex 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: beamer_xetex.pdf
Type: application/pdf
Size: 124173 bytes
Desc: not available
Url : http://tug.org/pipermail/macostex-archives/attachments/20080202/b7950f27/attachment-0003.pdf 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: beamer_xetex.tex
Type: application/x-tex
Size: 1336 bytes
Desc: not available
Url : http://tug.org/pipermail/macostex-archives/attachments/20080202/b7950f27/attachment-0003.tex 
-------------- next part --------------
 
-------------------------- Helpful Info --------------------------
TeX FAQ: http://www.tex.ac.uk/faq
List Reminders and Etiquette: http://www.esm.psu.edu/mac-tex/list/
List Info: http://email.esm.psu.edu/mailman/listinfo/macosx-tex
List Archive: http://tug.org/pipermail/macostex-archives/
Mac-TeX Website: http://www.esm.psu.edu/mac-tex/