problem when installing in fc3

[pierre-étienne]

Hello and thank you for what you have done for musicians when creating 
LilyPond 
I used to work with LilyPond for a while in Windows, but decided to change my 
O.S. to work in fedora core3. When I installed LilyPond (and 
ec-fonts-mftraced) on fedora, I got the message that can be seen above. I 
tried to reinstall a few times and it did work, and I converted all my files 
to the new version of LilPond. But I had to reinstall fc3 and after trying to 
reinstall over and over LilyPond, I always have this message when processing 
test.ly :
GNU LilyPond 2.4.6
Processing `test.ly'
Analyse...
Interprétation en cours de la musique...[1]
Pré-traitement des éléments graphiques...
Calcul des bris de lignes... [2]
Layout output to `test.tex'...
Converting to `test.dvi'...
Error invoking `latex \\nonstopmode \\input test.tex > /dev/null 2>&1 '. 
Return value 256
Converting to `test.ps'...
Error invoking `dvips  -t "a4"   -u+ec-mftrace.map -u+lilypond.map -Ppdf test 
> /dev/null 2>&1 '. Return value 256
Conversion à « test.pdf »...Error invoking `ps2pdf  -sPAPERSIZE="a4" test.ps 
> /dev/null 2>&1 '. Return value 256

Can anybody help me please ?
Pierre-Étienne Nataf