feta.20.afm not found??

[Tapio Tuovila]

Hi,
I compiled and installed 2.4.1 yesterday.
When trying to test the program, I got the following error:

"
lilypond-2.4.1/input> lilypond simple.ly
GNU LilyPond 2.4.1
Processing `simple.ly'
Jäsennetään...
Tulkitaan musiikkia...virhe: `feta20.afm' jäi löytymättä
Music font has not been installed properly.  Aborting
"
however, feta20.afm seems to be in
/usr/local/share/lilypond/2.4.1/fonts/afm/feta20.afm
where it should be.

tried to look in the archives but didn't find anything concerning this. 
Apologies if my question is too trivial.

So: what am I missing, what should be done to get things working?
TIA,
Tapio