Unreadable (messed up, tiny, invisible, or Greek) fonts in Navigator

There are several reasons that Netscape Navigator might display some
text in an unreadable symbol (usually Greek) font, or not display the
text at all (the text is invisible), under Windows 3.1 and Windows 95:
  - If you have a font named "Monotype Sorts" on your system, then
    remove it (via the Fonts control panel) and see if that solves the
    problem.  Some software which installs this font (such as Lotus
    SmartSuite) might put a corrupt copy of the font file
    ("mtsorts_.ttf") onto your system, which could interfere with the
    other fonts that you use.
  - If you have a file named "PHONETIC.FON" in your "WINDOWS\SYSTEM" or
    "WINDOWS\FONTS" directory, then renaming to have a different
    extension (like "PHONETIC.OLD").  This font file, which is believed
    to be installed by either WordPerfect or Corel Draw, can cause
    problems with Netscape Navigator.  You may need to exit out of
    Windows back to DOS before you can rename the file.
  - If you have Adobe Type Manager running, turn it off and reboot.
    That will sometimes solve the problem.
  - If you're seeing the wrong font appear on your printouts, then
    possibly your printer doesn't support the font you've chosen for
    Netscape Navigator to use.  Select "Preferences" from the Options
    menu, go to the "Fonts" section, and try selecting different
    proportional and fixed fonts.
If the above suggestions do not help, then you may want to read the "Why
Do My Fonts Look Funny" section of the "Unofficial Netscape FAQ", which
is available on "http://www.astro.ufl.edu/~oliver/faq/", for some
additional ideas which have helped some users.