Bl!zz:
Thanks for the reply
So far everything else is working in my other programs in Mavericks. Tried Safe Mode and voila, fonts appear as before. Restart in normal user mode, not so great. I can now highlight a folder, such as All Fonts, go to search and select All in drop down menu, hit return, and the fonts magically reveal themselves as Samuel above states. Custom View won't work and fills the box with some latin gibberish. If I do anything (like delete a foreign alphabet typeface or change collection) everything disappears all over again.
Tried trashing preferences, yadyadyada...nothing.
I wouldn't bother reloading new OS. Will wait for an upgrade and make do or buy a 99¢ app from applestore. Will try different user as you suggest, but if you don't hear back, it means it didn't work either.