It would appear that for Netscape 4.7x to work properly, among other
things, there must be an exact correspondence between fonts listed in the
fs catalogue and fonts actually installed.
The default fs font list (in /etc/X11/fs/config) that ships with RedHat
6.2 includes /usr/share/fonts/default/Truetype in the catalogue. The
default RH 6.2 workstation install doesn't install these fonts, (they don't
seem to be on the CD at all) further exacerbating the 'Netscape hangs when
it can't find it's fonts' problem. Easiest fix: edit the config file,
remove the offending line, and restart X. Netscape 4.7x appears to be far
more stable after matching installed fonts to catalogued fonts. Perhaps
there are Truetype fonts out there, I've not had the time to look yet.
This shouldn't be a problem; netscape doesn't even know
what's in the font server's font path.