Slower audio file.

I have a strange problem since some time. I import an audio file into Cubase but when I listen to the result, the audio file is slower than it really is. The tempo of the song is faster. I have checked that when listening to this audio file with Windows Media Reader and starting Cubase at the right time I can almost synchronize the song and the audio file.
Thanks.

make sure the sample rates match.

Thanks! It now works.