lyrics with accents

[Sylvain]

Hello, 

I'm trying to write a song with franch lyrics. In franch we need to use leters
like é, à, è, etc. I don't know how to write it with lilypond. I had the version
2.10 and the letters with accent were not compiled. I downloaded the versions
2.13, and now these leters are replaced by an "o" in the pdf file. Could you
explain how to do? 

Thanks, 
Sylvain Lamesch