Failed to load sound buffer from file

[Contadotempo]

Hi, I'm new to the forums so I'm not sure if I'm posting in the correct section, but here it goes.

I tried making a program in Visual Studio C++ 2008 using SFML, that would play a simple .wav file. However when I run it I only get the message:
"Failed to load sound buffer from file "sound.wav".

The code is the default one provided on the Audio tutorial:
http://www.sfml-dev.org/tutorials/1.6/audio-sound.php

source file in: http://www.sfml-dev.org/tutorials/1.6/sources/audio-sound.cpp

I've included libsndfile-1 and openal32 on the exe folder. The sound is present on the folder as well and is named sound.wav

What could be wrong?

Thanks in advance for any help

[Contadotempo]

It was a problem related to Visual Studio 2008.
I was compiling on debug mode. Changing it to "Release" solved it.