Sometimes, when I work on a font, I have some difficulty with strings–I’ll make a change to the version or copyright information, save, then uninstall and reinstall the font, but then something strange happens. If I double click on the ttf file for the default font viewer, the old information is displayed. If I use a full-featured viewer (like Arjan Mels’), the same. But, if I go back into FCP and go to Format>Naming it will show me the new information.
I’m particularly concerned because I accidentally made a typo in entering the URL for my web site the first time, and now anybody who clicks on the link gets 404-ed. It’s really frustrating to keep going back and fixing things and then seeing that they haven’t really been fixed.
Any help would be appreciated.
One thing you need to know is that if you modify a font, save it, and open it in Font Viewer, what you see will be the installed font, not the one you opened in font view 
This had me baffled for a long time. Even when I learnt it once, I forgot the next time. It is so illogical. If I open a font in Windows Explorer I expect to see that one, not another one in the Windows font folder.
If I try to install a font directly from Font Creator, I get a message that the font is in use, and I’m unable to install the font. I found the safest way is to delete the font from the font folder, and reinstall the updated font in the usual way.
I found the safest way is to delete the font from the font folder, and reinstall the updated font in the usual way.
OK, here’s the thing–I’ve gone so far as to delete both the working version and the installed version, re-name the font (both the file name and all the name strings), save the font, and install it as if it were a totally new font…and somehow everything is still exactly as it was. Even when I go into control panel, when I get the list of not-yet-installed fonts in the directory where I saved it, it’s showing up as the old name (the font name, not the file name).
I’ve even went so far as to open the font in Notepad to see which strings were buried in all that code…and, um, both sets are in there. That’s right. Towards the end of the file, there’s the new stuff, normal, and right after that, the old stuff, s p e l l e d o u t l i k e t h i s. I even tried editing the font as if it were a text file–don’t do that, btw. No matter how closely you follow format, the font gets wrecked.
Does your font have more than one mapping? Is the advanced naming information the same for all mappings? If that’s not it you can send me the font if you like.
Wow–that was it. I changed all the strings in the Mac mapping and left all the typos in the MS Unicode mapping.
$10 says I forget all this the next time I work on a font. 
Thanks!