[code:1]
[root@localhost seb]# locate sans && locate Sans
/usr/share/apps/ksgmltools2/docbook/xsl/params/sans.font.family.xml
/usr/share/xine/libxine1/fonts/sans-16.xinefont.gz
/usr/share/xine/libxine1/fonts/sans-20.xinefont.gz
/usr/share/xine/libxine1/fonts/sans-24.xinefont.gz
/usr/share/xine/libxine1/fonts/sans-32.xinefont.gz
/usr/share/xine/libxine1/fonts/sanshu-16.xinefont.gz
/usr/share/xine/libxine1/fonts/sanshu-20.xinefont.gz
/usr/share/xine/libxine1/fonts/sanshu-24.xinefont.gz
/usr/share/xine/libxine1/fonts/sanshu-32.xinefont.gz
/usr/lib/kbd/consolefonts/alt-sans-8x16.psf.gz
/usr/java/j2re1.4.2/lib/fonts/LucidaSansDemiBold.ttf
/usr/java/j2re1.4.2/lib/fonts/LucidaSansDemiOblique.ttf
/usr/java/j2re1.4.2/lib/fonts/LucidaSansOblique.ttf
/usr/java/j2re1.4.2/lib/fonts/LucidaSansRegular.ttf
[root@localhost seb]# locate monospace
/usr/share/apps/ksgmltools2/docbook/xsl/params/monospace.font.family.xml
/usr/share/apps/ksgmltools2/docbook/xsl/params/monospace.verbatim.properties.xml
[root@localhost seb]# rpm -qa | grep font
libfontconfig1-2.1-9mdk
XFree86-75dpi-fonts-4.3-5mdk
fonts-ttf-west_european-1.3-11mdk
fontconfig-2.1-9mdk
urw-fonts-2.0-9mdk
ghostscript-fonts-6.0-1mdk
libfontconfig1-devel-2.1-9mdk
XFree86-100dpi-fonts-4.3-5mdk
fonts-ttf-decoratives-1.3-11mdk
chkfontpath-1.9.5-1mdk
font-tools-0.1-10mdk
[root@localhost seb]#[/code:1]
hope it helps
, although i dont know how ...