That appears to be my exact issue. I'll report back and confirm after I do an archive an reinstall of 10.6.6.
Thanks for posting.
Yep, that appears to be the problem. Using my Snow Leopard install disk, I did an archive and install of 10.6.3 then installed the 10.6.6 updated to revert back from 10.6.7. I've opened the file and the fonts appear to be fine. Thanks for the tip.
I had the same issue and discovered a quick work around (not great for the long term) that does not require OS downgrade.
The first time Flash launches:
1. create a new fla
2. create a text box with the desired font that produces the issue
3. type out every character (lower and UPPER case) include all punctuation and numbers
4. Open any file that uses the font and you should be good to go
Hope that helps.