Problems with fonts installation

[Larry Tan]

I recently upgraded my Linux distro.  I tried to install Lilypond 2.3.20 in 
Mandrake 10.1 and got the following message.

Now processing `NowsTheTime.ly'
Parsing...
Interpreting music... error: can't find `feta20.afm'
Music font has not been installed properly.  Aborting.

feta20.afm is installed in /usr/share/lilypond/2.3.20/fonts/afm

I tried what Aaron suggested in his previous post, but it didn't help.

Is there a simple way for a Linux newbie to fix this??  Any help would be 
appreciated. 

Thanks

Larry