Changing Interface Language in InDesign CS2

Does anyone know how to do this?

A friend (German, uses German MacOS X), has been give an English copy by his employers (he needs to work with InDesign docs every now & then).

We need to get InDesign's menus & interface in German

I've tried the trick of editing the 'info.plist' file :

<key>CFBundleDevelopmentRegion</key>
<string>German</string>

The splashscreen starts in German, then I get:

"The installer seems to have written the wrong AUM Application ID"

and all that's posted is the InDesign menu

Any ideas? (AUM = Adobe Update Manager).

 

I'll answer my own question:

It took me a while, but You need to trash InDesign's preferences before you restart it. Then you'll get the full German interface (or any other language, come to that if you know the string).