Hello Claude,
en fait il y a deux versions de Logic Pro 9 (en voici la preuve et il y a une explication sur le forum d'Apple):
"There are two versions of Logic Studio:
1. The English-International version, which was shipped in mid-July. This version already contains the localization for 5 languages, but the manual (and help system) is not translated. That version was ONLY sold by Apple in English speaking countries and in countries, that won't receive a localized version.
2. The multilingual version, which started shipping in early September. That version has all localizations of the manual inside the applications (French, German, Japanese, Spanish and Chinese). The box contains written manuals in one of the 5 languages."
Ceci explique cela !:)