EXS24 instrument - audio file not found

Hi, I'm new in Logic, downloaded Logic Pro 9 yesterday from App Store, downloaded tonight all additional contents. I interrupted download and restarted one time, Logic seemed to realize that I had already downloaded part of the contents, without no error message .

I've iMac mid 2011 intel core i3 with internal hd 500 gb, the base version.

I tried to search in threads without any result.

Each time I launch Logic, I receive these messages:

EXS24 instrument “Steinway Piano.exs”:

Audio file “Stw ped v1 024.AIF” not found!

(Note: The file “Steinway Piano.exs” is here: /Library/Application Support/Logic/Sampler Instruments/01 Acoustic Pianos. The file “Stw ped v1 024.AIF” instead is not in mi hd.)

EXS24 instrument “Liverpool Bass.exs”:

Audio file “IL Btl Bass bomb 08.aif” not found!

(Note: The file “Liverpool Bass.exs” is here: /Library/Application Support/Logic/Sampler Instruments/02 Bass/02 Electric Bass. The file “IL Btl Bass bomb 08.aif” instead is not in mi hd.)

EXS24 instrument “Seventies Kit.exs”:

Audio file “DC Tit Hat 08.aif” not found!

(Note: The file “Seventies Kit.exs” is here: /Library/Application Support/Logic/Sampler Instruments/03 Drums & Percussion/01 Acoustic Drum Kits. The file “DC Tit Hat 08.aif” instead is not in mi hd.)

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If I try to consolidate a project, Logic can't find hundreds audio (.aif) EXS24 files.

I also have the same *.exs files in the Garageband location.