st: [Stata 12] can't insert braces and other special characters

[Dirk Enzmann <dirk.enzmann@uni-hamburg.de>]

Trying to use Stata 12 I can't insert a brace or other special 
characters into the command line or in the do-file editor such as 
"squared brackets" ( "{", "[", "]", "²" ).
Instead of inserting the respective character Stata opens the help 
window (when using { ), the data editor (when using [ ), a new do-file 
(when using ] ) or does nothing (when using ² ). One should note that I 
use a German keyboard where all these characters are produced by 
pressing the key-combination <ALT-GR>-<number>, such as:
<ALT GR>-<7> : {
<ALT GR>-<8> : [
<ALT GR>-<9> : ]
<ALT GR>-<2> : ²

It is nice that Stata allows to open the do-file editor, the data 
editor, or the help window with only one key-stroke, but how do I change 
the behavior back to "normal" so that I can enter the characters into 
the command line or the do-file editor?
Dirk

Stata: Version 12.0 (Revision 26-Jul-2011)
Operating system: Windows 7
Keyboard layout: German

========================================
Dr. Dirk Enzmann
Institute of Criminal Sciences
Dept. of Criminology
Rothenbaumchaussee 33
D-20148 Hamburg
Germany

phone: +49-(0)40-42838.7498 (office)
       +49-(0)40-42838.4591 (Mrs Billon)
fax:   +49-(0)40-42838.2344
email: dirk.enzmann@uni-hamburg.de
http://www2.jura.uni-hamburg.de/instkrim/kriminologie/Mitarbeiter/Enzmann/Enzmann.html
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