I was having a font basedcrash with system 8.6 due to a bug in the system which corrupts the font files in the fond (Spelt Fond) data fork of the font file or sometnig like that. In my font fault all text vanished from the machine, including folder names and pulldown menus.
The fix was to go back to 8.5 and remove all the fontsand re install no corrupted files. Although you are supposed to be able to get a program that will fix the corruption. I didn't bother cos you have to locate which font is corrupt by pulling them out and trying to make it crash till you identify it.
That's exactly the sort of thing I like to stay late at work doing, not
