I recently used drag-n-drop to add about twenty new fonts to my Win98 fonts
folder; I then installed the fonts from the dialog.  Now, however, though I
didn't overwrite any previously-existing fonts that I'm aware of, the left
pane of the "help" dialog has, instead of letters, only squares for each
alphabetic character (numbers don't seem to have been affected); similarly,
when I print font descriptions from the Fonts folder, the fonts themselves
turn out fine, but the descriptions at the very beginning print out with
those same squares (though it displays on the monitor correctly).  I'm using
98SE on an older computer, and because it's older I don't dare upgrade to
XP.  The affected font must be a system font of some type.  Interestingly,
though, when I print from within MS Word, everything works there.  Any
hints?

Additional notes:  I don't connect this computer to the internet at all, and
the XP machine where I got the fonts is running anti-virus software
constantly.  I did a scan of the "source" computer, and nothing shows up as
being out-of-whack.  I had used the 98SE computer earlier in the morning
with no problem, but only after the installation of fonts did it change.
The total number of fonts on that machine is about 250