something gotta be causing it...
either corrupt install media or midi communication or video related or font related
u must have a corrupt font.
i remember these things happening alot..
i mean u read hte text in that fontmanager update
the font manager update stops it from happening further
but it sounds to me that u have already had it happen
and the only thing that can fix is overwriting the font with a corrected 100% ok one
or reinstalling your os from a source that doesnt contain that corrupt font
my suggestion would be
download the mac os anthology dvd from the link i posted
and reinstall your 7.x or 8.x os install from this "Developers" compilation
to be sure that your os install is 100% and does not contain some corrupt file
http://macos9lives.com/smforum/index.php?topic=1858.0i think it will be disc 4 or 5 that you need that will contain 7.6 i think
google "mac os anthology" to try to find a better index of the discs before u download maybe to make sure u are getting the right disc