two system fonts not showing up
Problem: The long and short of it is that I messed up System/Library/Fonts. From what I can see now, just two fonts are not displaying as they ought: Symbol and Zapf Dingbats.
Steps taken: I've reinstalled (following Kurt Lang's advice to use Pacifist – http://www.jklstudios.com/misc/osxfonts.html) the System/Library/Fonts for Snow Leopard from the installation disc. When I open Fontbook and look at the fonts, they display their attributes, but when I open Font Explorer (or for that matter any application and try to type in those fonts), they do not.
I have cleared the font cache several times, and immediately restarted each time. I cleared by safe booting. I cleared by terminal command. Any idea what is going on? Font Explorer shows conflict between just 2 font files right now after I reinstalled the System/Library/Fonts and Library/Fonts: Aquakana and STHeiti. Neither Zapf Dingbats nor Symbol are listed as having conflicts.
History: I had some conflicting fonts, and wound up using Font Explorer's 'Clean System Fonts Folder' option to discard fonts that I've added recently. However, the operation somehow or other removed some essential system fonts like Lucida Grande, Helvetica Neue, Last Resort, Menlo, STXihei, and Symbol, and my startup screen was looking a little strange. Don't ask me why I did this - I know it was stupid - but I manually replaced the missing fonts into System/Library/Fonts, then restarted, and everything looked fine. I then dug into the folder that Font Explorer had saved and compared its contents with the fonts in Library/Fonts and discarded all duplicates. I then moved the non-duplicate fonts into Library/Fonts. In Library/Fonts there is a font named ITC Zapf Dingbats (postscript) and there are 8 fonts named ITC Symbol (Black, Black Italic, Bold, Bold Italic, etc), which are OpenType. I have tried de-activating them, but doing that has not corrected the problem.
Plea for help: Can anyone help me to understand what is happening and how to restore these two fonts: Zapf Dingbats and Symbol?
iMac, Mac OS X (10.6.8), Epson Stylus Photo T60 (via USB)