I am getting different results on the shadows beneath the boxes (title page and all others) depending on whether I compile with pfdLaTeX or XeLaTeX. When compiling with pdfLaTeX the shading works as expected, but when compiling with XeLaTeX there is no shading at all, just a solid black background.

My log file just gives me the following errors:

! Missing { inserted. - l.40 \end{frame} ! Missing { inserted. - l.40 \end{frame}

Overfull \hbox (299.25987pt too wide) detected at line 40 [] ! Missing } inserted. }

l.40 \end{frame} ! Missing } inserted. } l.40 \end{frame}

Package pgf Warning: Your graphic driver pgfsys-xetex.def does not support fadings. This warning is given only once on input line 40.

I tried the suggestion given on this thread, with no results.

How should I go about fixing this? Here's my test MWE:


   \setsansfont[Mapping=tex-text]{Gill Sans MT}

\title[Short title]{Unusually long version of some generic title}
\subtitle{Important info, though not worthy of title status}
\author{A. U. Thor.}
\institute[Short Institute]{Long form of the institutional name}



  \frametitle{First slide}
  Good stuff!

  \frametitle{Can't jump to conclusions just yet!}

  • Which beamer version do you have?
    – Joseph Wright
    Oct 19, 2012 at 12:55
  • @JosephWright: beamer 2011/09/12 development version 3.18 A class for typesetting presentations (rcs-revision 70f9d8411e54)
    – Ricardo
    Oct 19, 2012 at 12:58
  • Try updating your beamer to the current release (3.22).
    – Joseph Wright
    Oct 19, 2012 at 13:04
  • tlmgr kindly requested that I upgrade to TeXLive 2012. I guess I should finally get around to it. I'll tell you how it goes in a few hours.
    – Ricardo
    Oct 19, 2012 at 13:21
  • You can just download beamer from CTAN, if you prefer.
    – Joseph Wright
    Oct 19, 2012 at 13:24

1 Answer 1


This is a 'known issue' with v3.18, which is fixed in v3.19 and later versions. Updating beamer should fix the problem.

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