problems when starting the client

Hello list,
installing freeciv was not a problem, but everytime i try to start the cl=
ient=20
(as a non-root user of course) with a
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civlient
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this is the answer
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2: Kein Audio-Plugin vorhanden; Sound deaktiviert
2: F=FCr Audio mu=DF entweder 'esound' oder 'SDL_mixer' installiert sein
2: Esound: http://www.tux.org/~ricdude/EsounD.html
2: SDL_mixer: http://www.libsdl.org/projects/SDL_mixer/index.html
2: Benutze Reserveressourcen - OK
Speicherzugriffsfehler
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hm. both esound and sdl_mixer are allready installed, so what's wrong?
thx for answering, lorenz