hi… in font book i deactivated all fonts with the exception of the apple system fonts. you can find a list of the system fonts on the web somewhere i am sure.
then, using FontAgent Pro application i imported all of my fonts. Created two libraries. a system fonts library and then the rest of my fonts. Autoactivation was turned on, so if i open an application requiring a font that i do not have activated, it will activate that font. But for the sake of eliminating variables, all fonts were deactivated except system fonts.
from there i used Smasher application and “smashed” all font caches.
then i restarted and the issue was resolved. also, i did not have any other users on my system. might help to delete other users before doing this or maybe do the same process for the other user accounts first, then do the master admin and restart and log in to the master.
good luck