Aloha Thomas,

Thanks for the suggestion, but the problem persists!

Only replacing the "0" with an "a" helps.



----------------------------------------------
#+LaTeX_CLASS: beamer
#+startup: beamer

* Lanx
** title

#+BEGIN_Example perl
 grep { $_ ->[a] }      # <- 0 fails
 X{1,2,3} X{1,2,3} X{1,2,3};
#+END_Example

----------------------------------------------

type C-c C-e d  (or C-c C-e L)